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(-5*x-12)/7+3/8 = 2*x+5/4 // - 2*x+5/4
(-5*x-12)/7-(2*x)+3/8-(5/4) = 0
(-5*x-12)/7-2*x+3/8-5/4 = 0
(4*8*(-5*x-12))/(4*7*8)+(-2*4*7*8*x)/(4*7*8)+(3*4*7)/(4*7*8)+(-5*7*8)/(4*7*8) = 0
4*8*(-5*x-12)-2*4*7*8*x+3*4*7-5*7*8 = 0
84-608*x-384-280 = 0
-608*x-300-280 = 0
-608*x-580 = 0
(-608*x-580)/(4*7*8) = 0
(-608*x-580)/(4*7*8) = 0 // * 4*7*8
-608*x-580 = 0
-608*x-580 = 0 // + 580
-608*x = 580 // : -608
x = 580/(-608)
x = -145/152
x = -145/152
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