解方程12×6+8x=1201-34x=35.-数学

题目简介

解方程12×6+8x=1201-34x=35.-数学

题目详情

解方程
12×6+8x=1201-
3
4
x=
3
5
题型:解答题难度:中档来源:不详

答案


(1)12×6+8x=120,
72+8x=120,
72+8x-72=120-72,
8x=48,
8x÷8=48÷8,
x=6;

(2)1-class="stub"3
4
x=class="stub"3
5

1-class="stub"3
4
x+class="stub"3
4
x=class="stub"3
5
+class="stub"3
4
x,
class="stub"3
4
x+class="stub"3
5
-class="stub"3
5
=1-class="stub"3
5

class="stub"3
4
x=class="stub"2
5

class="stub"3
4
class="stub"3
4
=class="stub"2
5
÷class="stub"3
4

x=class="stub"8
15

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