6m-3n+1=0 3m+2n-10=0解方程6m-3n+1=0 3m+2n-10=0我算出来的答案不太对,求正解..
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6m-3n+1=03m+2n-10=0解方程6m-3n+1=03m+2n-10=0我算出来的答案不太对,求正解..6m-3n+1=03m+2n-10=0解方程6m-3n+1=03m+2n-10=0我算
6m-3n+1=0 3m+2n-10=0解方程6m-3n+1=0 3m+2n-10=0我算出来的答案不太对,求正解..
6m-3n+1=0 3m+2n-10=0
解方程
6m-3n+1=0
3m+2n-10=0
我算出来的答案不太对,求正解..
6m-3n+1=0 3m+2n-10=0解方程6m-3n+1=0 3m+2n-10=0我算出来的答案不太对,求正解..
答:
6m-3n+1=0…………(1)
3m+2n-10=0…………(2)
(2)式两边同乘以2:
6m+4n-20=0…………(3)
(3)式减去(1)式得:
7n-21=0
n=3代入(1)得:
6m-9+1=0
m=4/3
所以:方程组的解为m=4/3,n=3
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