-20x+40=-28x

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Solution for -20x+40=-28x equation: 



-20x+40=-28x

We move all terms to the left:

-20x+40-(-28x)=0

We get rid of parentheses

-20x+28x+40=0

We add all the numbers together, and all the variables

8x+40=0

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

8x=-40

x=-40/8

x=-5

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