432=-8r-8(2+7r)

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Solution for 432=-8r-8(2+7r) equation: 



432=-8r-8(2+7r)

We move all terms to the left:

432-(-8r-8(2+7r))=0

We add all the numbers together, and all the variables

-(-8r-8(7r+2))+432=0



We calculate terms in parentheses: -(-8r-8(7r+2)), so:

-8r-8(7r+2)

We multiply parentheses

-8r-56r-16

We add all the numbers together, and all the variables

-64r-16

Back to the equation:

-(-64r-16)



We get rid of parentheses

64r+16+432=0

We add all the numbers together, and all the variables

64r+448=0

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

64r=-448

r=-448/64

r=-7

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