8(5r-7)=40+8r

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Solution for 8(5r-7)=40+8r equation: 



8(5r-7)=40+8r

We move all terms to the left:

8(5r-7)-(40+8r)=0

We add all the numbers together, and all the variables

8(5r-7)-(8r+40)=0

We multiply parentheses

40r-(8r+40)-56=0

We get rid of parentheses

40r-8r-40-56=0

We add all the numbers together, and all the variables

32r-96=0

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

32r=96

r=96/32

r=3

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