274=-8(1+5r)-7r

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Solution for 274=-8(1+5r)-7r equation: 



274=-8(1+5r)-7r

We move all terms to the left:

274-(-8(1+5r)-7r)=0

We add all the numbers together, and all the variables

-(-8(5r+1)-7r)+274=0



We calculate terms in parentheses: -(-8(5r+1)-7r), so:

-8(5r+1)-7r

We add all the numbers together, and all the variables

-7r-8(5r+1)

We multiply parentheses

-7r-40r-8

We add all the numbers together, and all the variables

-47r-8

Back to the equation:

-(-47r-8)



We get rid of parentheses

47r+8+274=0

We add all the numbers together, and all the variables

47r+282=0

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

47r=-282

r=-282/47

r=-6

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