8r-5=-7+9r-7

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Solution for 8r-5=-7+9r-7 equation: 



8r-5=-7+9r-7

We move all terms to the left:

8r-5-(-7+9r-7)=0

We add all the numbers together, and all the variables

8r-(9r-14)-5=0

We get rid of parentheses

8r-9r+14-5=0

We add all the numbers together, and all the variables

-1r+9=0

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

-r=-9

r=-9/-1

r=+9

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