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OpenStudy (anonymous):
Just turn it around, 10 + 4/3 = x
OpenStudy (mariebrittany07):
okay how would I solve it or is that all I have to do
OpenStudy (anonymous):
Are you solving for x?
OpenStudy (mariebrittany07):
yes I am solving for x
OpenStudy (mariebrittany07):
I have two more of these to figure out
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OpenStudy (anonymous):
So you would need to add 10 + 4/3 to get what x equals.
10 + 4/3 = 34/3 or 11.33333333
So, x=34/3 or 11.3333333
OpenStudy (anonymous):
Haha, didn't you just post another one? where did it go?
OpenStudy (mariebrittany07):
\[\frac{ x-8 }{ 4? }=-10\]
OpenStudy (anonymous):
Why is there a question mark after that 4 in the denominator?
OpenStudy (mariebrittany07):
forgot to take out not suppost to be there
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OpenStudy (anonymous):
Ohh, ok. well that was confusing me.. hang on. let me try to work it out.
OpenStudy (mariebrittany07):
okay
OpenStudy (anonymous):
Ok, so I think I'm right.... hahaha.
x-8/4=-10
Multiply both sides by the demoninator
4(x-8/4)=(-10)4
The 4's cancel out on the left side and you end up with
x-8=-40
Then you add 8 to both sides to get x by itself
x=-32
OpenStudy (mariebrittany07):
\[\frac{ x+10 }{ 5 }=8
5(x+10/5)=(8)5
x+10=40
x=30
right
OpenStudy (anonymous):
Is this a new problem? The way you have it written is confusing me.
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OpenStudy (mariebrittany07):
i did one by myself just checking to see if i understand yes it is new
OpenStudy (mariebrittany07):
\[\frac{ x+10 }{ 5 }=8\]
OpenStudy (mariebrittany07):
5(x+10/5)=(8)5 x+10=40 x=30 right
OpenStudy (anonymous):
Yay! I think you're right! Good job!
OpenStudy (mariebrittany07):
i have never done algebra before but i need your help on some others
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OpenStudy (anonymous):
Ok, just post them & i'll do my best
OpenStudy (mariebrittany07):
this is a new problem 9x+4+2x=37
OpenStudy (mariebrittany07):
9x+2x=11x
11x+4=37
am i right
OpenStudy (anonymous):
So far, yes..
Need help on the rest?
OpenStudy (mariebrittany07):
okay
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OpenStudy (anonymous):
It was a question...
OpenStudy (mariebrittany07):
yes
OpenStudy (mariebrittany07):
not sure what to do next
OpenStudy (anonymous):
Ok, so you got to
11x+4=37
Subtract 4 from each side so 11x will by itself..
11x=33
Then divide both sides by 11 to get x by itself
x=3
OpenStudy (mariebrittany07):
okay next question 6x-2-3x=25
6x-3x=3x
3x-2=25
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OpenStudy (mariebrittany07):
lost from here
OpenStudy (anonymous):
3x-2=25
Add 2 to both sides
3x=27
Divide both sides by 3
x=9
OpenStudy (mariebrittany07):
okay i understand some
OpenStudy (mariebrittany07):
new problem 4x+5-2x-3=10
OpenStudy (mariebrittany07):
lost have adding and subtraction both
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OpenStudy (anonymous):
4x+5-2x-3=10
4x and -2x combine to become 2x
5 and -3 combine to become 2
So...
2x+2=10
Subtract 2 from both sides
2x=8
Divide by 2 on both sides
x=4
OpenStudy (mariebrittany07):
you are so smart
OpenStudy (mariebrittany07):
new problem
OpenStudy (mariebrittany07):
4(3x-5)=6
4*3=12x
4*5=20
12x-20=6
am i right
OpenStudy (mariebrittany07):
this is brittany's mom
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OpenStudy (anonymous):
How was the original problem stated? & thank you! I am on this site because I need help too but no one can help me..
OpenStudy (mariebrittany07):
dont know math it was not my subject in school
OpenStudy (anonymous):
Hi, Brittany's mom..
OpenStudy (mariebrittany07):
4(3x-5)=6
OpenStudy (mariebrittany07):
hi
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OpenStudy (mariebrittany07):
brittany is eatting so i am typing
OpenStudy (mariebrittany07):
you are showing her
OpenStudy (anonymous):
Ok, so start by multiplying out the first part of the problem..
4(3x-5)
4*3x=12x
4*-5=-20
So now you have this:
12x-20=6
Add 20 to both sides
12x=26
Divide by 12 on both sides
x=26/12 then you can simplify that to 13/6
I want you to know.. Although I'm pretty sure I'm right I'm not as confident on this one.
OpenStudy (anonymous):
Ohh, wait.. I am just as confident.. Haha, it's right.. I went back over it.
OpenStudy (mariebrittany07):
this is brittany that was to funny
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OpenStudy (mariebrittany07):
-3(-2x-4)=5
OpenStudy (mariebrittany07):
-3*-2=6
OpenStudy (mariebrittany07):
-3*4=-12
OpenStudy (mariebrittany07):
right
OpenStudy (mariebrittany07):
6x- -12=5
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OpenStudy (anonymous):
I was about to correct something you did, but your end result that you just posted was right. You know the - - = + right?
So
6x+12=5
OpenStudy (mariebrittany07):
so i minus 12 from both sides right giving me a neg 7
OpenStudy (mariebrittany07):
divide -7 by 6
OpenStudy (anonymous):
yes! :)
OpenStudy (mariebrittany07):
x=1.16 right
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OpenStudy (anonymous):
Yes and no.. You divided a negative by a positive so your answer has to be negative. So it's -1.167
OpenStudy (mariebrittany07):
okay thank you
OpenStudy (mariebrittany07):
one more
OpenStudy (anonymous):
Ok.. haha
OpenStudy (mariebrittany07):
-4(5x+6)=7
-4*5=-20
-4*6=-24
-20+-24=7
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OpenStudy (mariebrittany07):
-20x +-24=7
OpenStudy (anonymous):
So far so good
OpenStudy (mariebrittany07):
this is as far as i know
OpenStudy (anonymous):
Ohh, ok. Then you add 24 to both sides..
OpenStudy (mariebrittany07):
x=31
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OpenStudy (anonymous):
No, adding the 24 to both sides didn't effect the -20x.
It just got rid of the -24 and made the right side 31..
So at this step you should have:
-20x=31
And then you would divide by -20 on both sides
OpenStudy (mariebrittany07):
x=-1.55
OpenStudy (mariebrittany07):
am i right
OpenStudy (anonymous):
Yes! yay
OpenStudy (mariebrittany07):
thank you so much see i know some not all
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OpenStudy (mariebrittany07):
you are my lifesaver
OpenStudy (anonymous):
You're welcome! You'll get it! :)
Best of luck! I'm getting off line now.. haha
I need to try to get back to my statistics.. ughhhhhh.. haha
OpenStudy (mariebrittany07):
okay mom said she wish she could help
OpenStudy (anonymous):
Me too! Haha..
It's okay though, I'll figure it out.
Bye (: