问题 解答题
解方程.
(1)5.6x-
3
5
x=4.8

(2)5x-3×
7
10
=
7
5
答案

(1)5.6x-

3
5
x=4.8,

     (5.6-0.6)x=4.8,

               5x=4.8,

            5x÷5=4.8÷5,

                x=0.96;

(2)5x-3×

7
10
=
7
5

        5x-2.1=1.4,

    5x-2.1+2.1=1.4+2.1,

            5x=3.5,

         5x÷5=3.5÷5,

             x=0.7.

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