-7(-3+5r)=231

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Solution for -7(-3+5r)=231 equation: 



-7(-3+5r)=231

We move all terms to the left:

-7(-3+5r)-(231)=0

We add all the numbers together, and all the variables

-7(5r-3)-231=0

We multiply parentheses

-35r+21-231=0

We add all the numbers together, and all the variables

-35r-210=0

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

-35r=210

r=210/-35

r=-6

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