redroses2 redroses2

22-02-2018
Mathematics

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Someone please help me understand how I’m supposed to solve for r

Someone please help me understand how Im supposed to solve for r class=

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gustanika gustanika

22-02-2018

K = 4r - 7s
or I flip the side, so r will be on the left side
4r - 7s = K

move 7s to the other side, it becomes plus
4r - 7s = K
4r = K + 7s

move 4 to the other side, it becomes a divisor
4r = K + 7s
r = [tex]\boxed{\cfrac{K+7s}{4}}[/tex]

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