7-3(-4+3r)=10r+3(1-9r)

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Solution for 7-3(-4+3r)=10r+3(1-9r) equation: 



7-3(-4+3r)=10r+3(1-9r)

We move all terms to the left:

7-3(-4+3r)-(10r+3(1-9r))=0

We add all the numbers together, and all the variables

-3(3r-4)-(10r+3(-9r+1))+7=0

We multiply parentheses

-9r-(10r+3(-9r+1))+12+7=0



We calculate terms in parentheses: -(10r+3(-9r+1)), so:

10r+3(-9r+1)

We multiply parentheses

10r-27r+3

We add all the numbers together, and all the variables

-17r+3

Back to the equation:

-(-17r+3)



We add all the numbers together, and all the variables

-9r-(-17r+3)+19=0

We get rid of parentheses

-9r+17r-3+19=0

We add all the numbers together, and all the variables

8r+16=0

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

8r=-16

r=-16/8

r=-2

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