1/4-1/2r=-3/4r

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Solution for 1/4-1/2r=-3/4r equation: 


r in (-oo:+oo)

1/4-((1/2)*r) = (-3/4)*r // - (-3/4)*r

1/4-((1/2)*r)-((-3/4)*r) = 0

(-1/2)*r+(3/4)*r+1/4 = 0

1/4*r+1/4 = 0 // - 1/4

1/4*r = -1/4 // : 1/4

r = -1/4/1/4

r = -1

r = -1

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