6R+7(1-r)=13

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Solution for 6R+7(1-r)=13 equation: 



6+7(1-R)=13

We move all terms to the left:

6+7(1-R)-(13)=0

We add all the numbers together, and all the variables

7(-1R+1)+6-13=0

We add all the numbers together, and all the variables

7(-1R+1)-7=0

We multiply parentheses

-7R+7-7=0

We add all the numbers together, and all the variables

-7R=0

R=0/-7

R=0

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