-280=-5(-8r+8)

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Solution for -280=-5(-8r+8) equation:



-280=-5(-8r+8)
We move all terms to the left:
-280-(-5(-8r+8))=0
We calculate terms in parentheses: -(-5(-8r+8)), so:
-5(-8r+8)
We multiply parentheses
40r-40
Back to the equation:
-(40r-40)
We get rid of parentheses
-40r+40-280=0
We add all the numbers together, and all the variables
-40r-240=0
We move all terms containing r to the left, all other terms to the right
-40r=240
r=240/-40
r=-6

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