试题与答案

18.5x-9.9x=1.72.

题型:解答题

题目:

18.5x-9.9x=1.72.

答案:

18.5x-9.9x=1.72,

8.6x=1.72,

8.6x÷8.6=1.72÷8.6,

x=0.2.

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