107=-3(-5r+4)-1

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Solution for 107=-3(-5r+4)-1 equation: 



107=-3(-5r+4)-1

We move all terms to the left:

107-(-3(-5r+4)-1)=0



We calculate terms in parentheses: -(-3(-5r+4)-1), so:

-3(-5r+4)-1

We multiply parentheses

15r-12-1

We add all the numbers together, and all the variables

15r-13

Back to the equation:

-(15r-13)



We get rid of parentheses

-15r+13+107=0

We add all the numbers together, and all the variables

-15r+120=0

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

-15r=-120

r=-120/-15

r=+8

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