-7x-21+12x=6x+12+13

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Solution for -7x-21+12x=6x+12+13 equation: 



-7x-21+12x=6x+12+13

We move all terms to the left:

-7x-21+12x-(6x+12+13)=0

We add all the numbers together, and all the variables

-7x+12x-(6x+25)-21=0

We add all the numbers together, and all the variables

5x-(6x+25)-21=0

We get rid of parentheses

5x-6x-25-21=0

We add all the numbers together, and all the variables

-1x-46=0

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

-x=46

x=46/-1

x=-46

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