2(a+7)=28

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Solution for 2(a+7)=28 equation: 



2(a+7)=28

We move all terms to the left:

2(a+7)-(28)=0

We multiply parentheses

2a+14-28=0

We add all the numbers together, and all the variables

2a-14=0

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

2a=14

a=14/2

a=7

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