x/13+21=20

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Solution for x/13+21=20 equation:



x/13+21=20
We move all terms to the left:
x/13+21-(20)=0
We add all the numbers together, and all the variables
x/13+1=0
We multiply all the terms by the denominator
x+1*13=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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