解方程1-35x=671.755=x3.-数学

题目简介

解方程1-35x=671.755=x3.-数学

题目详情

解方程
1-
3
5
x=
6
7

1.75
5
=
x
3
题型:解答题难度:中档来源:不详

答案

(1)1-class="stub"3
5
x=class="stub"6
7

1-class="stub"3
5
x+class="stub"3
5
x-class="stub"6
7
=class="stub"6
7
+class="stub"3
5
x-class="stub"6
7

class="stub"1
7
=class="stub"3
5
x,
class="stub"3
5
class="stub"5
3
=class="stub"1
7
×class="stub"5
3

x=class="stub"5
21

(2)class="stub"1.75
5
=class="stub"x
3

5x=1.75×3,
5x÷5=1.75×3÷5,
x=1.05.

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