7x-21-3x+13=7+6x-9

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Solution for 7x-21-3x+13=7+6x-9 equation: 



7x-21-3x+13=7+6x-9

We move all terms to the left:

7x-21-3x+13-(7+6x-9)=0

We add all the numbers together, and all the variables

7x-3x-(6x-2)-21+13=0

We add all the numbers together, and all the variables

4x-(6x-2)-8=0

We get rid of parentheses

4x-6x+2-8=0

We add all the numbers together, and all the variables

-2x-6=0

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

-2x=6

x=6/-2

x=-3

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