3+7x(-9)=66

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



3+7x(-9)=66

We move all terms to the left:

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

We add all the numbers together, and all the variables

7x(-9)-63=0

We multiply parentheses

-63x-63=0

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

-63x=63

x=63/-63

x=-1

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