2(7+a)-7=9

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Solution for 2(7+a)-7=9 equation: 



2(7+a)-7=9

We move all terms to the left:

2(7+a)-7-(9)=0

We add all the numbers together, and all the variables

2(a+7)-7-9=0

We add all the numbers together, and all the variables

2(a+7)-16=0

We multiply parentheses

2a+14-16=0

We add all the numbers together, and all the variables

2a-2=0

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

2a=2

a=2/2

a=1

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