7(1-7r)=-140+49r

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Solution for 7(1-7r)=-140+49r equation: 



7(1-7r)=-140+49r

We move all terms to the left:

7(1-7r)-(-140+49r)=0

We add all the numbers together, and all the variables

7(-7r+1)-(49r-140)=0

We multiply parentheses

-49r-(49r-140)+7=0

We get rid of parentheses

-49r-49r+140+7=0

We add all the numbers together, and all the variables

-98r+147=0

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

-98r=-147

r=-147/-98

r=1+1/2

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