3r/15-5=-2/5-20

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Solution for 3r/15-5=-2/5-20 equation: 


r in (-oo:+oo)

(3*r)/15-5 = -2/5-20 // + -2/5-20

(3*r)/15-(-2/5)-5+20 = 0

(3*r)/15+2/5-5+20 = 0

1/5*r+77/5 = 0 // - 77/5

1/5*r = -77/5 // : 1/5

r = -77/5/1/5

r = -77

r = -77

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