Mathematics

OpenStudy (anonymous):
Can i ask it on here?

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OpenStudy (anonymous):
-5x-22=0
x=4.4 is that right

OpenStudy (anonymous):
@Luigi0210

OpenStudy (anonymous):
You there?

OpenStudy (luigi0210):
Check your adding/subtracting

OpenStudy (anonymous):
that's correct

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OpenStudy (anonymous):
can u show me how then please and can u respond fast

OpenStudy (luigi0210):
So 5+7=22?

OpenStudy (anonymous):
no sorry its 15 my bad

OpenStudy (anonymous):
not 5

OpenStudy (luigi0210):
Then yea, your answer is correct.

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OpenStudy (anonymous):
okay what about this one
2x+3-5x-7=17
7x-4+17
7x=21
x=3

OpenStudy (luigi0210):
Check your math

OpenStudy (anonymous):
-3x-4=17

OpenStudy (luigi0210):
There you go

OpenStudy (anonymous):
okay how do I do this one 4-3(x+4)=7

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OpenStudy (luigi0210):
Distribute the 3

OpenStudy (anonymous):
okay so 4-3x+12=7

OpenStudy (luigi0210):
Distribute that -3 to +4, so -12

OpenStudy (anonymous):
oh yeah. okay so next is... 3x-16=12

OpenStudy (luigi0210):
That's a +4 at the beginning so it's (4-12)

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OpenStudy (anonymous):
-3x-8=12
-3x=20

OpenStudy (anonymous):
you there @Luigi0210

OpenStudy (luigi0210):
Yes that's right

OpenStudy (anonymous):
x= -6.6

OpenStudy (luigi0210):
In decimal yest

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OpenStudy (luigi0210):
*yes

OpenStudy (anonymous):
okay how would I solve this inequality
5-2/3x > -7

OpenStudy (luigi0210):
Get x by itself

OpenStudy (anonymous):
how do I do that

OpenStudy (luigi0210):
The same way as if it was an equal sign

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OpenStudy (anonymous):
So is it -2/3 > -2

OpenStudy (luigi0210):
subtract 5 not add

OpenStudy (anonymous):
--2/3 > -12

OpenStudy (luigi0210):
Now multiply by the negative reciprocal.

OpenStudy (anonymous):
24/3

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OpenStudy (luigi0210):
Since it's negative you also flip the sign around

OpenStudy (anonymous):
so -24/3

OpenStudy (luigi0210):
No, the inequality sign not the number

OpenStudy (anonymous):
so the answer is < 24/3

OpenStudy (luigi0210):
Yup, and don't forget your x on the left

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OpenStudy (anonymous):
okay is that graphable

OpenStudy (luigi0210):
On certain devices it is, and by hand yes

OpenStudy (anonymous):
okay do I look for the points 24 and 3 or

OpenStudy (luigi0210):
On a coordinate plane or number line?

OpenStudy (anonymous):
number line

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OpenStudy (luigi0210):
Find the point 8, since (24/3)=8
And draw a line going to the right

OpenStudy (anonymous):
okay im working on this other problem:
-9x - 4 > -6x + 20
-15x^2-4>+20
is that right so far?

OpenStudy (luigi0210):
I'm not answering any more problems unless it's on a new post

OpenStudy (anonymous):
Ok