x+21*3=2x+23

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Solution for x+21*3=2x+23 equation: 



x+21*3=2x+23

We move all terms to the left:

x+21*3-(2x+23)=0

We add all the numbers together, and all the variables

x-(2x+23)+63=0

We get rid of parentheses

x-2x-23+63=0

We add all the numbers together, and all the variables

-1x+40=0

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

-x=-40

x=-40/-1

x=+40

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