5Y+4/3+Y-1/4=2-5Y-5/12

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5Y+4/3+Y-1/4=2-5Y-5/125Y+4/3+Y-1/4=2-5Y-5/125Y+4/3+Y-1/4=2-5Y-5/125y+3/4+y-4/1=2-5y-12/56y+12/16-12/

5Y+4/3+Y-1/4=2-5Y-5/12
5Y+4/3+Y-1/4=2-5Y-5/12

5Y+4/3+Y-1/4=2-5Y-5/12
5y+3/4+y-4/1=2-5y-12/5
6y+12/16-12/3=2-5y-12/5
6y+5y=-12/5-12/16+12/3
11y=-2/3
y=-22/3
(注:/ 是分号)

去分母4(5y+4)+3(y-1)=24-(5y-5)
20y+16+3y-3=24-5y+5
20y+3y+5y=24+5+3-16
28y=16
y=8/14

5y+3/4+y-4/1=2-5y-12/5
6y+12/16-12/3=2-5y-12/5
6y+5y=-12/5-12/16+12/3
11y=-2/3
y=-22/3

5y+y+5y=2-5/12+1/4-4/3
11y=(24-8+3-16)/12
11y=1/4
y=1/4*1/11
y=1/44
应该不会错。