解方程6.58÷x=7505x-310×12=375.-数学

题目简介

解方程6.58÷x=7505x-310×12=375.-数学

题目详情

解方程
6.58÷x=
7
50

5x-
3
10
×12=
37
5
题型:解答题难度:中档来源:不详

答案

(1)6.58÷x=class="stub"7
50

      6.58÷x×x=class="stub"7
50
×x,
          class="stub"7
50
×x=6.58,
     class="stub"7
50
×x×class="stub"50
7
=6.58×class="stub"50
7

               x=47;

(2)5x-class="stub"3
10
×12=class="stub"37
5

         5x-class="stub"18
5
=class="stub"37
5

     5x-class="stub"18
5
+class="stub"18
5
=class="stub"37
5
+class="stub"18
5

             5x=11,
          5x÷5=11÷5,
              x=class="stub"11
5

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