3r-9=r/2-7

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Solution for 3r-9=r/2-7 equation: 



3r-9=r/2-7

We move all terms to the left:

3r-9-(r/2-7)=0

We get rid of parentheses

3r-r/2+7-9=0

We multiply all the terms by the denominator


3r*2-r+7*2-9*2=0

We add all the numbers together, and all the variables

-1r+3r*2-4=0

Wy multiply elements

-1r+6r-4=0

We add all the numbers together, and all the variables

5r-4=0

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

5r=4

r=4/5

r=4/5

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