如果a与b互为倒数,且7/a=b/x,那么2x等于_.
如果a与b互为倒数,且
=
,那么2x等于______.
数学人气:719 ℃时间:2019-10-24 09:49:56
优质解答
=
7x=ab(a与b互为倒数乘积是1)
7x÷7=1÷7
x=
2x=
×2=;
故答案为:
.
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