3a-30=a+18

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Solution for 3a-30=a+18 equation: 



3a-30=a+18

We move all terms to the left:

3a-30-(a+18)=0

We get rid of parentheses

3a-a-18-30=0

We add all the numbers together, and all the variables

2a-48=0

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

2a=48

a=48/2

a=24

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