7(-5+3r)=15-4r

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Solution for 7(-5+3r)=15-4r equation: 



7(-5+3r)=15-4r

We move all terms to the left:

7(-5+3r)-(15-4r)=0

We add all the numbers together, and all the variables

7(3r-5)-(-4r+15)=0

We multiply parentheses

21r-(-4r+15)-35=0

We get rid of parentheses

21r+4r-15-35=0

We add all the numbers together, and all the variables

25r-50=0

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

25r=50

r=50/25

r=2

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