-7=r-5/2

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Solution for -7=r-5/2 equation: 



-7=r-5/2

We move all terms to the left:

-7-(r-5/2)=0

We add all the numbers together, and all the variables

-(+r-5/2)-7=0

We get rid of parentheses

-r-7+5/2=0

We multiply all the terms by the denominator


-r*2+5-7*2=0

We add all the numbers together, and all the variables

-r*2-9=0

Wy multiply elements

-2r-9=0

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

-2r=9

r=9/-2

r=-4+1/2

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