21+2x=x+8

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Solution for 21+2x=x+8 equation:



21+2x=x+8
We move all terms to the left:
21+2x-(x+8)=0
We get rid of parentheses
2x-x-8+21=0
We add all the numbers together, and all the variables
x+13=0
We move all terms containing x to the left, all other terms to the right
x=-13

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