5x+21=x+3

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



5x+21=x+3
We move all terms to the left:
5x+21-(x+3)=0
We get rid of parentheses
5x-x-3+21=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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