21x=13x-13

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Solution for 21x=13x-13 equation:



21x=13x-13
We move all terms to the left:
21x-(13x-13)=0
We get rid of parentheses
21x-13x+13=0
We add all the numbers together, and all the variables
8x+13=0
We move all terms containing x to the left, all other terms to the right
8x=-13
x=-13/8
x=-1+5/8

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