5r+40=-3r-7(5+r)

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Solution for 5r+40=-3r-7(5+r) equation: 



5r+40=-3r-7(5+r)

We move all terms to the left:

5r+40-(-3r-7(5+r))=0

We add all the numbers together, and all the variables

5r-(-3r-7(r+5))+40=0



We calculate terms in parentheses: -(-3r-7(r+5)), so:

-3r-7(r+5)

We multiply parentheses

-3r-7r-35

We add all the numbers together, and all the variables

-10r-35

Back to the equation:

-(-10r-35)



We get rid of parentheses

5r+10r+35+40=0

We add all the numbers together, and all the variables

15r+75=0

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

15r=-75

r=-75/15

r=-5

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