①m/3-n/4=3② m/2-n/3=132.①(x+2)/3+(y-1)/2=2②(x+2)/3+(1-y)/2=1

问题描述:

①m/3-n/4=3② m/2-n/3=13
2.①(x+2)/3+(y-1)/2=2②(x+2)/3+(1-y)/2=1