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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We add all the numbers together, and all the variables

r-(-4(r+2))+4=0



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

-4(r+2)

We multiply parentheses

-4r-8

Back to the equation:

-(-4r-8)



We get rid of parentheses

r+4r+8+4=0

We add all the numbers together, and all the variables

5r+12=0

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

5r=-12

r=-12/5

r=-2+2/5

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