x/2-y-1/5=1 x-1/3+y-2/2=3
问题描述:
x/2-y-1/5=1 x-1/3+y-2/2=3
答
即5x-2y+2=10
5x-2y=8 (1)
2x-2+3y-6=18
2x+3y=26 (2)
(1)×3+(2)×2
15x+4x=24+52
19x=76
x=4
y=(26-2x)/3=6