解方程组 30x=4/5y 40(x-1)=y+25

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解方程组30x=4/5y40(x-1)=y+25解方程组30x=4/5y40(x-1)=y+25解方程组30x=4/5y40(x-1)=y+2530x=4y/540(x-1)=y+25150x=4y4

解方程组 30x=4/5y 40(x-1)=y+25
解方程组 30x=4/5y 40(x-1)=y+25

解方程组 30x=4/5y 40(x-1)=y+25
30x=4y/5 40(x-1)=y+25 150x=4y 40x-40=y+25 75x-2y=0 40x-y-65=0 5x-130=0,x=26,y=975 亲,您的采纳是我的动力,