x-1+x+7=3x-7

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Solution for x-1+x+7=3x-7 equation: 



x-1+x+7=3x-7

We move all terms to the left:

x-1+x+7-(3x-7)=0

We add all the numbers together, and all the variables

2x-(3x-7)+6=0

We get rid of parentheses

2x-3x+7+6=0

We add all the numbers together, and all the variables

-1x+13=0

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

-x=-13

x=-13/-1

x=+13

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