-7(1-r)=49

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Solution for -7(1-r)=49 equation: 



-7(1-r)=49

We move all terms to the left:

-7(1-r)-(49)=0

We add all the numbers together, and all the variables

-7(-1r+1)-49=0

We multiply parentheses

7r-7-49=0

We add all the numbers together, and all the variables

7r-56=0

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

7r=56

r=56/7

r=8

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