3(7r-1)+7=-143

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Solution for 3(7r-1)+7=-143 equation: 



3(7r-1)+7=-143

We move all terms to the left:

3(7r-1)+7-(-143)=0

We add all the numbers together, and all the variables

3(7r-1)+150=0

We multiply parentheses

21r-3+150=0

We add all the numbers together, and all the variables

21r+147=0

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

21r=-147

r=-147/21

r=-7

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