8+7r=3-(1r+3)

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Solution for 8+7r=3-(1r+3) equation: 



8+7r=3-(1r+3)

We move all terms to the left:

8+7r-(3-(1r+3))=0

We add all the numbers together, and all the variables

7r-(3-(r+3))+8=0



We calculate terms in parentheses: -(3-(r+3)), so:

3-(r+3)

determiningTheFunctionDomain
-(r+3)+3

We get rid of parentheses

-r-3+3

We add all the numbers together, and all the variables

-r

Back to the equation:

-(-r)



We add all the numbers together, and all the variables

7r-(-1r)+8=0

We get rid of parentheses

7r+1r+8=0

We add all the numbers together, and all the variables

8r+8=0

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

8r=-8

r=-8/8

r=-1

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