7(1-4r)-7r=147

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Solution for 7(1-4r)-7r=147 equation: 



7(1-4r)-7r=147

We move all terms to the left:

7(1-4r)-7r-(147)=0

We add all the numbers together, and all the variables

7(-4r+1)-7r-147=0

We add all the numbers together, and all the variables

-7r+7(-4r+1)-147=0

We multiply parentheses

-7r-28r+7-147=0

We add all the numbers together, and all the variables

-35r-140=0

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

-35r=140

r=140/-35

r=-4

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