20+2x=56-x

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Solution for 20+2x=56-x equation: 



20+2x=56-x

We move all terms to the left:

20+2x-(56-x)=0

We add all the numbers together, and all the variables

2x-(-1x+56)+20=0

We get rid of parentheses

2x+1x-56+20=0

We add all the numbers together, and all the variables

3x-36=0

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

3x=36

x=36/3

x=12

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