-4r+5(r+5)=-9r-3(1-r)

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Solution for -4r+5(r+5)=-9r-3(1-r) equation: 



-4r+5(r+5)=-9r-3(1-r)

We move all terms to the left:

-4r+5(r+5)-(-9r-3(1-r))=0

We add all the numbers together, and all the variables

-4r+5(r+5)-(-9r-3(-1r+1))=0

We multiply parentheses

-4r+5r-(-9r-3(-1r+1))+25=0



We calculate terms in parentheses: -(-9r-3(-1r+1)), so:

-9r-3(-1r+1)

We multiply parentheses

-9r+3r-3

We add all the numbers together, and all the variables

-6r-3

Back to the equation:

-(-6r-3)



We add all the numbers together, and all the variables

r-(-6r-3)+25=0

We get rid of parentheses

r+6r+3+25=0

We add all the numbers together, and all the variables

7r+28=0

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

7r=-28

r=-28/7

r=-4

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