问题 解答题

解方程

x+18=52                       5x-1.5x=59.5.

答案

(1)x+18=52,

       x+18-18=52-18,

             x=34;

 (2)5x-1.5x=59.5,

          3.5x=59.5,

     3.5x÷3.5=59.5÷3.5,

             x=17.

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