7r+4-4r=10+9r

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Solution for 7r+4-4r=10+9r equation: 



7r+4-4r=10+9r

We move all terms to the left:

7r+4-4r-(10+9r)=0

We add all the numbers together, and all the variables

7r-4r-(9r+10)+4=0

We add all the numbers together, and all the variables

3r-(9r+10)+4=0

We get rid of parentheses

3r-9r-10+4=0

We add all the numbers together, and all the variables

-6r-6=0

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

-6r=6

r=6/-6

r=-1

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