20=15+2x

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Solution for 20=15+2x equation: 



20=15+2x

We move all terms to the left:

20-(15+2x)=0

We add all the numbers together, and all the variables

-(2x+15)+20=0

We get rid of parentheses

-2x-15+20=0

We add all the numbers together, and all the variables

-2x+5=0

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

-2x=-5

x=-5/-2

x=2+1/2

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