3a-8=40

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Solution for 3a-8=40 equation: 



3a-8=40

We move all terms to the left:

3a-8-(40)=0

We add all the numbers together, and all the variables

3a-48=0

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

3a=48

a=48/3

a=16

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