7(r+1)=7+7r

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Solution for 7(r+1)=7+7r equation: 



7(r+1)=7+7r

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

7r-(7r+7)+7=0

We get rid of parentheses

7r-7r-7+7=0

We add all the numbers together, and all the variables

=0

r=0/1

r=0

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