12/7r+5/3=-4r+5/7

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Solution for 12/7r+5/3=-4r+5/7 equation: 


r in (-oo:+oo)

(12/7)*r+5/3 = 5/7-4*r // - 5/7-4*r

(12/7)*r-(-4*r)+5/3-(5/7) = 0

(12/7)*r+4*r+5/3-5/7 = 0

40/7*r+20/21 = 0 // - 20/21

40/7*r = -20/21 // : 40/7

r = -20/21/40/7

r = -1/6

r = -1/6

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