解方程:1){x-1=3(y-2)2(x-1)=5y-18; 2)2x+3y/4+2x-3y/3=7,2x+3y/3+2x-3y/2=8.
1){x-1=3(y-2),2(x-1)=5y-182){2x+3y/4+2x-3y/3=7,2x+3y/3+2x-3y/2=8急~要过程~...
1){x-1=3(y-2),2(x-1)=5y-18 2){2x+3y/4+2x-3y/3=7,2x+3y/3+2x-3y/2=8 急~要过程~
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