7-9=-3x-x

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Solution for 7-9=-3x-x equation: 



7-9=-3x-x

We move all terms to the left:

7-9-(-3x-x)=0

We add all the numbers together, and all the variables

-(-4x)+7-9=0

We add all the numbers together, and all the variables

-(-4x)-2=0

We get rid of parentheses

4x-2=0

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

4x=2

x=2/4

x=1/2

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