5(r+1)=7(r+5)

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Solution for 5(r+1)=7(r+5) equation: 



5(r+1)=7(r+5)

We move all terms to the left:

5(r+1)-(7(r+5))=0

We multiply parentheses

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



We calculate terms in parentheses: -(7(r+5)), so:

7(r+5)

We multiply parentheses

7r+35

Back to the equation:

-(7r+35)



We get rid of parentheses

5r-7r-35+5=0

We add all the numbers together, and all the variables

-2r-30=0

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

-2r=30

r=30/-2

r=-15

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