162=1+7(-2+5r)

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Solution for 162=1+7(-2+5r) equation: 



162=1+7(-2+5r)

We move all terms to the left:

162-(1+7(-2+5r))=0

We add all the numbers together, and all the variables

-(1+7(5r-2))+162=0



We calculate terms in parentheses: -(1+7(5r-2)), so:

1+7(5r-2)

determiningTheFunctionDomain
7(5r-2)+1

We multiply parentheses

35r-14+1

We add all the numbers together, and all the variables

35r-13

Back to the equation:

-(35r-13)



We get rid of parentheses

-35r+13+162=0

We add all the numbers together, and all the variables

-35r+175=0

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

-35r=-175

r=-175/-35

r=+5

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