解方程组2(x+1)=3(y-3),5x-2y=11
问题描述:
解方程组2(x+1)=3(y-3),5x-2y=11
答
x=5 y=7过程2x+2=3y-9..................(1)5x-2y=11....................(2)2x-3y= -115x-2y=1110x-15y= -55.......(1)10x-4y=22...........(2)(1)-(2)-11y= -77y=7