20+3x=4-x

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Solution for 20+3x=4-x equation: 



20+3x=4-x

We move all terms to the left:

20+3x-(4-x)=0

We add all the numbers together, and all the variables

3x-(-1x+4)+20=0

We get rid of parentheses

3x+1x-4+20=0

We add all the numbers together, and all the variables

4x+16=0

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

4x=-16

x=-16/4

x=-4

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