-3(8+a)=30

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Solution for -3(8+a)=30 equation: 



-3(8+a)=30

We move all terms to the left:

-3(8+a)-(30)=0

We add all the numbers together, and all the variables

-3(a+8)-30=0

We multiply parentheses

-3a-24-30=0

We add all the numbers together, and all the variables

-3a-54=0

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

-3a=54

a=54/-3

a=-18

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