3(a-8)=-45

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Solution for 3(a-8)=-45 equation: 



3(a-8)=-45

We move all terms to the left:

3(a-8)-(-45)=0

We add all the numbers together, and all the variables

3(a-8)+45=0

We multiply parentheses

3a-24+45=0

We add all the numbers together, and all the variables

3a+21=0

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

3a=-21

a=-21/3

a=-7

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