7+2(a-)=-9

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



7+2(a-)=-9

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We add all the numbers together, and all the variables

2(+a)+16=0

We multiply parentheses

2a+16=0

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

2a=-16

a=-16/2

a=-8

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