a+2(a-5)=30

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



a+2(a-5)=30

We move all terms to the left:

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

We multiply parentheses

a+2a-10-30=0

We add all the numbers together, and all the variables

3a-40=0

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

3a=40

a=40/3

a=13+1/3

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