-238=7(1+7r)

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Solution for -238=7(1+7r) equation: 



-238=7(1+7r)

We move all terms to the left:

-238-(7(1+7r))=0

We add all the numbers together, and all the variables

-(7(7r+1))-238=0



We calculate terms in parentheses: -(7(7r+1)), so:

7(7r+1)

We multiply parentheses

49r+7

Back to the equation:

-(49r+7)



We get rid of parentheses

-49r-7-238=0

We add all the numbers together, and all the variables

-49r-245=0

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

-49r=245

r=245/-49

r=-5

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