a*15=5*a+30

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Solution for a*15=5*a+30 equation: 



a*15=5a+30

We move all terms to the left:

a*15-(5a+30)=0

Wy multiply elements

15a-(5a+30)=0

We get rid of parentheses

15a-5a-30=0

We add all the numbers together, and all the variables

10a-30=0

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

10a=30

a=30/10

a=3

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