9+7x-12=3x+5x-4(2-x)

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Solution for 9+7x-12=3x+5x-4(2-x) equation: 



9+7x-12=3x+5x-4(2-x)

We move all terms to the left:

9+7x-12-(3x+5x-4(2-x))=0

We add all the numbers together, and all the variables

7x-(3x+5x-4(-1x+2))+9-12=0

We add all the numbers together, and all the variables

7x-(3x+5x-4(-1x+2))-3=0



We calculate terms in parentheses: -(3x+5x-4(-1x+2)), so:

3x+5x-4(-1x+2)

We add all the numbers together, and all the variables

8x-4(-1x+2)

We multiply parentheses

8x+4x-8

We add all the numbers together, and all the variables

12x-8

Back to the equation:

-(12x-8)



We get rid of parentheses

7x-12x+8-3=0

We add all the numbers together, and all the variables

-5x+5=0

We move all terms containing x to the left, all other terms to the right

-5x=-5

x=-5/-5

x=1

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