3r-10=r/10-7

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Solution for 3r-10=r/10-7 equation: 



3r-10=r/10-7

We move all terms to the left:

3r-10-(r/10-7)=0

We get rid of parentheses

3r-r/10+7-10=0

We multiply all the terms by the denominator


3r*10-r+7*10-10*10=0

We add all the numbers together, and all the variables

-1r+3r*10-30=0

Wy multiply elements

-1r+30r-30=0

We add all the numbers together, and all the variables

29r-30=0

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

29r=30

r=30/29

r=1+1/29

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