-5+r=10(4+r)

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Solution for -5+r=10(4+r) equation: 



-5+r=10(4+r)

We move all terms to the left:

-5+r-(10(4+r))=0

We add all the numbers together, and all the variables

r-(10(r+4))-5=0



We calculate terms in parentheses: -(10(r+4)), so:

10(r+4)

We multiply parentheses

10r+40

Back to the equation:

-(10r+40)



We get rid of parentheses

r-10r-40-5=0

We add all the numbers together, and all the variables

-9r-45=0

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

-9r=45

r=45/-9

r=-5

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