Mathematics
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OpenStudy (anonymous):
-4(x + 10)-6x= -3(x - 2)-5
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OpenStudy (anonymous):
Alright, so we need to remember PEDMAS
OpenStudy (anonymous):
And the Order of Operations
OpenStudy (anonymous):
Right? :)
OpenStudy (anonymous):
So, -4(x + 10)-6x= -3(x - 2)-5 , what we would do first is the Parenthesis
OpenStudy (anonymous):
-4(x+10)= -4x+-40
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OpenStudy (anonymous):
and 3(x-2)= 3x -6
OpenStudy (anonymous):
So, now our equation looks like this: -4x -40 -6x = 3x-6 x 5
OpenStudy (anonymous):
im still confused
OpenStudy (anonymous):
Ok, hold on one sec, k?
OpenStudy (anonymous):
ok thanks
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OpenStudy (anonymous):
Ok, so now we have -4x -40 -6x = 3x-6 x 5
OpenStudy (anonymous):
So, we need to get the variable isolated
OpenStudy (anonymous):
ok what does that mean lolol soory
OpenStudy (anonymous):
haha, it means we need to get X on one side and the numbers on the other
OpenStudy (anonymous):
We can combine some like terms here, so you see where? Hint: like terms are like 3x - 5x or 4+6 ;)
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OpenStudy (anonymous):
okay so how would I do that? ;)
OpenStudy (anonymous):
Do you know how to add like terms?
OpenStudy (anonymous):
no im in 7th grd this is practice for hs
OpenStudy (anonymous):
Oh, ok :) Alright.
OpenStudy (anonymous):
-4x -40 -6x = 3x-6 x 5 OR we could write it as: -4x -6x -40 = 3x -6 x 5
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OpenStudy (anonymous):
what is 3x - 6 x 5? It would be 3x -30 right?
OpenStudy (anonymous):
YEAH I somewhat get it
OpenStudy (anonymous):
Alright so on one side we have -4x -6x -40 and on the other we have 3x - 30
OpenStudy (anonymous):
@marichuiolopez do you want to do the rest, or do you want me to keep working thorugh it?
OpenStudy (anonymous):
can I get the rest please
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OpenStudy (anonymous):
Alright, no problem :)
OpenStudy (anonymous):
thank you!
OpenStudy (anonymous):
So, -4x -6x -40. Well, lets combine like terms, so -4x -6x = -10x so now we have -10x -40
OpenStudy (anonymous):
Now our equation is: -10x - 40 = -3x -30
OpenStudy (anonymous):
We want to have a positive variable, so we are going to add -3x to -10x
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OpenStudy (anonymous):
So, now we have: -7x -40 = -30
OpenStudy (anonymous):
lets add -40 to -30
OpenStudy (anonymous):
now we have -7x= 10
OpenStudy (anonymous):
we are going to divide both sides by -7, so the answer is 10/-7
OpenStudy (anonymous):
|dw:1413301711392:dw|
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OpenStudy (anonymous):
Make sense? :)
OpenStudy (anonymous):
oh ok thanks for everything(:
OpenStudy (anonymous):
Haha, no problem :)