问题 解答题
解方程.
(1)3-0.5x=
1
2
                       
(2)3
1
9
:x=0.5:
9
14
答案

(1)3-0.5x=

1
2

    3-0.5x+0.5x=

1
2
+0.5x,

           3-

1
2
=
1
2
+0.5x-
1
2

       2.5÷0.5=0.5x÷0.5,

              x=5;

(2)3

1
9
:x=0.5:
9
14

        0.5x=3

1
9
×
9
14

   0.5x÷0.5=2÷0.5,

           x=4.

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