x-66=7(2x+3)-9

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Solution for x-66=7(2x+3)-9 equation: 



x-66=7(2x+3)-9

We move all terms to the left:

x-66-(7(2x+3)-9)=0



We calculate terms in parentheses: -(7(2x+3)-9), so:

7(2x+3)-9

We multiply parentheses

14x+21-9

We add all the numbers together, and all the variables

14x+12

Back to the equation:

-(14x+12)



We get rid of parentheses

x-14x-12-66=0

We add all the numbers together, and all the variables

-13x-78=0

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

-13x=78

x=78/-13

x=-6

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