如果关于x的方程3x+4=0与方程3x+4k=8有相同的解,则k=()
人气:131 ℃ 时间:2019-12-01 14:04:35
解答
3x+4=0的解为x=-4/3
将x=-4/3代入3x+4k=8得
-4+4k=8
4k=12
k=3
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