2x+20=140-28x

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Solution for 2x+20=140-28x equation: 



2x+20=140-28x

We move all terms to the left:

2x+20-(140-28x)=0

We add all the numbers together, and all the variables

2x-(-28x+140)+20=0

We get rid of parentheses

2x+28x-140+20=0

We add all the numbers together, and all the variables

30x-120=0

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

30x=120

x=120/30

x=4

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