5x-3=x-21

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



5x-3=x-21

We move all terms to the left:

5x-3-(x-21)=0

We get rid of parentheses

5x-x+21-3=0

We add all the numbers together, and all the variables

4x+18=0

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

4x=-18

x=-18/4

x=-4+1/2

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