2r+4/4=4r/7

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Solution for 2r+4/4=4r/7 equation: 


r in (-oo:+oo)

2*r+4/4 = (4*r)/7 // - (4*r)/7

2*r-((4*r)/7)+4/4 = 0

2*r+(-4/7)*r+4/4 = 0

10/7*r+1 = 0 // - 1

10/7*r = -1 // : 10/7

r = -1/10/7

r = -7/10

r = -7/10

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