-3(8+x)=15

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Solution for -3(8+x)=15 equation: 



-3(8+x)=15

We move all terms to the left:

-3(8+x)-(15)=0

We add all the numbers together, and all the variables

-3(x+8)-15=0

We multiply parentheses

-3x-24-15=0

We add all the numbers together, and all the variables

-3x-39=0

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

-3x=39

x=39/-3

x=-13

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