3r+7r=16+6r

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Solution for 3r+7r=16+6r equation: 



3r+7r=16+6r

We move all terms to the left:

3r+7r-(16+6r)=0

We add all the numbers together, and all the variables

3r+7r-(6r+16)=0

We add all the numbers together, and all the variables

10r-(6r+16)=0

We get rid of parentheses

10r-6r-16=0

We add all the numbers together, and all the variables

4r-16=0

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

4r=16

r=16/4

r=4

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