7-r=1+7r+2r+16

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Solution for 7-r=1+7r+2r+16 equation: 



7-r=1+7r+2r+16

We move all terms to the left:

7-r-(1+7r+2r+16)=0

We add all the numbers together, and all the variables

-r-(9r+17)+7=0

We add all the numbers together, and all the variables

-1r-(9r+17)+7=0

We get rid of parentheses

-1r-9r-17+7=0

We add all the numbers together, and all the variables

-10r-10=0

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

-10r=10

r=10/-10

r=-1

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