12x-(9x-7)=28

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Solution for 12x-(9x-7)=28 equation: 



12x-(9x-7)=28

We move all terms to the left:

12x-(9x-7)-(28)=0

We get rid of parentheses

12x-9x+7-28=0

We add all the numbers together, and all the variables

3x-21=0

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

3x=21

x=21/3

x=7

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