8r-4=6+9r

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Solution for 8r-4=6+9r equation: 



8r-4=6+9r

We move all terms to the left:

8r-4-(6+9r)=0

We add all the numbers together, and all the variables

8r-(9r+6)-4=0

We get rid of parentheses

8r-9r-6-4=0

We add all the numbers together, and all the variables

-1r-10=0

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

-r=10

r=10/-1

r=-10

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