7(3r-7)+8=17-8r

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Solution for 7(3r-7)+8=17-8r equation: 



7(3r-7)+8=17-8r

We move all terms to the left:

7(3r-7)+8-(17-8r)=0

We add all the numbers together, and all the variables

7(3r-7)-(-8r+17)+8=0

We multiply parentheses

21r-(-8r+17)-49+8=0

We get rid of parentheses

21r+8r-17-49+8=0

We add all the numbers together, and all the variables

29r-58=0

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

29r=58

r=58/29

r=2

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