-7r+9=4-2r

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Solution for -7r+9=4-2r equation: 



-7r+9=4-2r

We move all terms to the left:

-7r+9-(4-2r)=0

We add all the numbers together, and all the variables

-7r-(-2r+4)+9=0

We get rid of parentheses

-7r+2r-4+9=0

We add all the numbers together, and all the variables

-5r+5=0

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

-5r=-5

r=-5/-5

r=1

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