2x+-7=-20

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Solution for 2x+-7=-20 equation: 



2x+-7=-20

We move all terms to the left:

2x+-7-(-20)=0

We add all the numbers together, and all the variables

2x+13=0

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

2x=-13

x=-13/2

x=-6+1/2

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