8(r-7)+3(r-1)=7

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Solution for 8(r-7)+3(r-1)=7 equation: 



8(r-7)+3(r-1)=7

We move all terms to the left:

8(r-7)+3(r-1)-(7)=0

We multiply parentheses

8r+3r-56-3-7=0

We add all the numbers together, and all the variables

11r-66=0

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

11r=66

r=66/11

r=6

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