21-x=2x-3=x+5

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Solution for 21-x=2x-3=x+5 equation: 



21-x=2x-3=x+5

We move all terms to the left:

21-x-(2x-3)=0

We add all the numbers together, and all the variables

-1x-(2x-3)+21=0

We get rid of parentheses

-1x-2x+3+21=0

We add all the numbers together, and all the variables

-3x+24=0

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

-3x=-24

x=-24/-3

x=+8

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