r+6(1+r)=20

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Solution for r+6(1+r)=20 equation: 



r+6(1+r)=20

We move all terms to the left:

r+6(1+r)-(20)=0

We add all the numbers together, and all the variables

r+6(r+1)-20=0

We multiply parentheses

r+6r+6-20=0

We add all the numbers together, and all the variables

7r-14=0

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

7r=14

r=14/7

r=2

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