2(2a+5a)=28

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Solution for 2(2a+5a)=28 equation: 



2(2a+5a)=28

We move all terms to the left:

2(2a+5a)-(28)=0

We add all the numbers together, and all the variables

2(+7a)-28=0

We multiply parentheses

14a-28=0

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

14a=28

a=28/14

a=2

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