7x-15=-2x+66

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Solution for 7x-15=-2x+66 equation: 



7x-15=-2x+66

We move all terms to the left:

7x-15-(-2x+66)=0

We get rid of parentheses

7x+2x-66-15=0

We add all the numbers together, and all the variables

9x-81=0

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

9x=81

x=81/9

x=9

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