7a+2(3a+5)=3a+30

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Solution for 7a+2(3a+5)=3a+30 equation: 



7a+2(3a+5)=3a+30

We move all terms to the left:

7a+2(3a+5)-(3a+30)=0

We multiply parentheses

7a+6a-(3a+30)+10=0

We get rid of parentheses

7a+6a-3a-30+10=0

We add all the numbers together, and all the variables

10a-20=0

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

10a=20

a=20/10

a=2

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