-3(1+2r)-(r+1=-1)r+7r

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Solution for -3(1+2r)-(r+1=-1)r+7r equation: 



-3(1+2r)-(r+1=-1)r+7r

We move all terms to the left:

-3(1+2r)-(r+1-(-1)r+7r)=0

We add all the numbers together, and all the variables

-3(2r+1)-(r+1-(-1)r+7r)=0

We multiply parentheses

-6r-(r+1-(-1)r+7r)-3=0



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

r+1-(-1)r+7r

determiningTheFunctionDomain
r-(-1)r+7r+1

We add all the numbers together, and all the variables

8r-(-1)r+1

We multiply parentheses

8r+1r+1

We add all the numbers together, and all the variables

9r+1

Back to the equation:

-(9r+1)



We get rid of parentheses

-6r-9r-1-3=0

We add all the numbers together, and all the variables

-15r-4=0

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

-15r=4

r=4/-15

r=-4/15

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