12a+30=78

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Solution for 12a+30=78 equation: 



12a+30=78

We move all terms to the left:

12a+30-(78)=0

We add all the numbers together, and all the variables

12a-48=0

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

12a=48

a=48/12

a=4

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