7=-2x-9

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Solution for 7=-2x-9 equation: 



7=-2x-9

We move all terms to the left:

7-(-2x-9)=0

We get rid of parentheses

2x+9+7=0

We add all the numbers together, and all the variables

2x+16=0

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

2x=-16

x=-16/2

x=-8

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