r/5=3r-140

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Solution for r/5=3r-140 equation: 


r in (-oo:+oo)

r/5 = 3*r-140 // - 3*r-140

r/5-(3*r)+140 = 0

r/5-3*r+140 = 0

140-14/5*r = 0 // - 140

-14/5*r = -140 // : -14/5

r = -140/(-14/5)

r = 50

r = 50

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