3a+15=36

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Solution for 3a+15=36 equation: 



3a+15=36

We move all terms to the left:

3a+15-(36)=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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