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+16)-21+13=0

We add all the numbers together, and all the variables

4x-(6x+16)-8=0

We get rid of parentheses

4x-6x-16-8=0

We add all the numbers together, and all the variables

-2x-24=0

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

-2x=24

x=24/-2

x=-12

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