2x+3y=m,.1
3x+2y=2m+2.2
2式-1式得
x-y=m+2
x-y=12
m+2=12
m=10
若方程组2x+3y=m,3x+2y=2m+2的解满足x-y=12 求m的值
若方程组2x+3y=m,3x+2y=2m+2的解满足x-y=12 求m的值
数学人气:546 ℃时间:2019-12-10 19:53:47
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