12.6-7×=1.4 = =12.6-7×=1.4===用数量关系解答

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12.6-7×=1.4 = =12.6-7×=1.4===用数量关系解答

12.6-7×=1.4 = =12.6-7×=1.4===用数量关系解答
12.6-7×=1.4 = =
12.6-7×=1.4
=
=
=
用数量关系解答

12.6-7×=1.4 = =12.6-7×=1.4===用数量关系解答
7x=12.6-1.4
7x=11.2
x=1.6