-4=40-2x

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Solution for -4=40-2x equation: 



-4=40-2x

We move all terms to the left:

-4-(40-2x)=0

We add all the numbers together, and all the variables

-(-2x+40)-4=0

We get rid of parentheses

2x-40-4=0

We add all the numbers together, and all the variables

2x-44=0

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

2x=44

x=44/2

x=22

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