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(2*x-5)/4 = (5*x+2)/2 // - (5*x+2)/2
(2*x-5)/4-((5*x+2)/2) = 0
(2*x-5)/4+(-1*(5*x+2))/2 = 0
(2*(2*x-5))/(2*4)+(-1*4*(5*x+2))/(2*4) = 0
2*(2*x-5)-1*4*(5*x+2) = 0
-16*x-18 = 0
(-16*x-18)/(2*4) = 0
(-16*x-18)/(2*4) = 0 // * 2*4
-16*x-18 = 0
-16*x-18 = 0 // + 18
-16*x = 18 // : -16
x = 18/(-16)
x = -9/8
x = -9/8
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