35×(512÷34)56+712÷1223÷〔1-(13-14)〕4÷1.25÷859×713+613×59解方程:34X+14=12.-数学

题目简介

35×(512÷34)56+712÷1223÷〔1-(13-14)〕4÷1.25÷859×713+613×59解方程:34X+14=12.-数学

题目详情

3
5
×(
5
12
÷
3
4

5
6
+
7
12
÷
1
2
2
3
÷〔1-(
1
3
-
1
4
)〕
4÷1.25÷8
5
9
×
7
13
+
6
13
×
5
9

解方程:
3
4
X+
1
4
=
1
2
题型:解答题难度:中档来源:不详

答案

(1)class="stub"3
5
×(class="stub"5
12
÷class="stub"3
4

=class="stub"3
5
×class="stub"5
9

=class="stub"1
3


(2)class="stub"5
6
+class="stub"7
12
÷class="stub"1
2

=class="stub"5
6
+class="stub"7
6

=2;

(3)class="stub"2
3
÷[1-(class="stub"1
3
-class="stub"1
4
)]
=class="stub"2
3
÷[1-class="stub"1
12
],
=class="stub"2
3
÷class="stub"11
12

=class="stub"8
11


(4)4÷1.25÷8
=4÷(1.25×8),
=4÷10,
=0.4;

(5)class="stub"5
9
×class="stub"7
13
+class="stub"6
13
×class="stub"5
9

=(class="stub"7
13
+class="stub"6
13
)×class="stub"5
9

=1×class="stub"5
9

=class="stub"5
9


(6)class="stub"3
4
x+class="stub"1
4
=class="stub"1
2

class="stub"3
4
x+class="stub"1
4
-class="stub"1
4
=class="stub"1
2
-class="stub"1
4

class="stub"3
4
x=class="stub"1
4

class="stub"3
4
x÷class="stub"3
4
=class="stub"1
4
÷class="stub"3
4

x=class="stub"1
3

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