r/10+13=20

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Solution for r/10+13=20 equation: 



r/10+13=20

We move all terms to the left:

r/10+13-(20)=0

We add all the numbers together, and all the variables

r/10-7=0

We multiply all the terms by the denominator


r-7*10=0

We add all the numbers together, and all the variables

r-70=0

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

r=70

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