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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

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



We calculate terms in parentheses: -(2x-(-1x+4)-12), so:

2x-(-1x+4)-12

We get rid of parentheses

2x+1x-4-12

We add all the numbers together, and all the variables

3x-16

Back to the equation:

-(3x-16)



We add all the numbers together, and all the variables

5x-(3x-16)-5=0

We get rid of parentheses

5x-3x+16-5=0

We add all the numbers together, and all the variables

2x+11=0

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

2x=-11

x=-11/2

x=-5+1/2

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