7-(x-1)=12

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Solution for 7-(x-1)=12 equation: 



7-(x-1)=12

We move all terms to the left:

7-(x-1)-(12)=0

We add all the numbers together, and all the variables

-(x-1)-5=0

We get rid of parentheses

-x+1-5=0

We add all the numbers together, and all the variables

-1x-4=0

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

-x=4

x=4/-1

x=-4

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