6-7x=6x-8+21

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Solution for 6-7x=6x-8+21 equation: 



6-7x=6x-8+21

We move all terms to the left:

6-7x-(6x-8+21)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

-7x-6x-13+6=0

We add all the numbers together, and all the variables

-13x-7=0

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

-13x=7

x=7/-13

x=-7/13

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