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k in (-oo:+oo)
(2*(k-5))/3 = (4*(k+2))/5 // - (4*(k+2))/5
(2*(k-5))/3-((4*(k+2))/5) = 0
(2*(k-5))/3+(-4/5)*(k+2) = 0
(2*(k-5))/3-4/5*(k+2) = 0
(2*(k-5))/3+(-4/5*3*(k+2))/3 = 0
2*(k-5)-4/5*3*(k+2) = 0
-2/5*k-74/5 = 0
(-2/5*k-74/5)/3 = 0
(-2/5*k-74/5)/3 = 0 // * 3
-2/5*k-74/5 = 0
-2/5*k-74/5 = 0 // + 74/5
-2/5*k = 74/5 // : -2/5
k = 74/5/(-2/5)
k = -37
k = -37
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