7(-3x)-18=66

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Solution for 7(-3x)-18=66 equation: 



7(-3x)-18=66

We move all terms to the left:

7(-3x)-18-(66)=0

We add all the numbers together, and all the variables

7(-3x)-84=0

We multiply parentheses

-21x-84=0

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

-21x=84

x=84/-21

x=-4

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