7-3r=1-4(2+r)

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Solution for 7-3r=1-4(2+r) equation: 



7-3r=1-4(2+r)

We move all terms to the left:

7-3r-(1-4(2+r))=0

We add all the numbers together, and all the variables

-3r-(1-4(r+2))+7=0



We calculate terms in parentheses: -(1-4(r+2)), so:

1-4(r+2)

determiningTheFunctionDomain
-4(r+2)+1

We multiply parentheses

-4r-8+1

We add all the numbers together, and all the variables

-4r-7

Back to the equation:

-(-4r-7)



We get rid of parentheses

-3r+4r+7+7=0

We add all the numbers together, and all the variables

r+14=0

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

r=-14

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