-7-x=-9-2x

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Solution for -7-x=-9-2x equation: 



-7-x=-9-2x

We move all terms to the left:

-7-x-(-9-2x)=0

We add all the numbers together, and all the variables

-x-(-2x-9)-7=0

We add all the numbers together, and all the variables

-1x-(-2x-9)-7=0

We get rid of parentheses

-1x+2x+9-7=0

We add all the numbers together, and all the variables

x+2=0

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

x=-2

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