40-(7x-112)=12

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Solution for 40-(7x-112)=12 equation: 



40-(7x-112)=12

We move all terms to the left:

40-(7x-112)-(12)=0

We add all the numbers together, and all the variables

-(7x-112)+28=0

We get rid of parentheses

-7x+112+28=0

We add all the numbers together, and all the variables

-7x+140=0

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

-7x=-140

x=-140/-7

x=+20

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