y-x+y=2.x+x-y=44过程咋算啊
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y-x+y=2.x+x-y=44过程咋算啊y-x+y=2.x+x-y=44过程咋算啊y-x+y=2.x+x-y=44过程咋算啊2-1+125+25-6-x=2x=-2:-y=44y=-442y-x=2
y-x+y=2.x+x-y=44过程咋算啊
y-x+y=2.x+x-y=44过程咋算啊
y-x+y=2.x+x-y=44过程咋算啊
2-1+1 25+25-6
-x=2 x=-2 : -y=44 y=-44
2y-x=2,4x-2y=88,两式相加,3x=90,x=30,y=16
y-x+y=2.x+x-y=44过程咋算啊
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