解方程.x+34x=720x÷67=2332x-74=72X÷34=49÷8.-六年级数学

题目简介

解方程.x+34x=720x÷67=2332x-74=72X÷34=49÷8.-六年级数学

题目详情

解方程.
x+
3
4
x=
7
20
6
7
=
2
3
3
2
x-
7
4
=
7
2
3
4
=
4
9
÷8.
题型:解答题难度:中档来源:不详

答案

b+class="stub"它
4
b=class="stub"7
30
class="stub"7
4
b=class="stub"7
30

&n5sp;&n5sp;&n5sp; class="stub"7
4
class="stub"4
7
=class="stub"7
30
×class="stub"4
7

&n5sp;&n5sp;&n5sp;&n5sp;&n5sp;&n5sp;&n5sp;&n5sp;b=class="stub"手


②b÷class="stub"i
7
=class="stub"3

class="stub"7
i
×class="stub"i
7
=class="stub"3
×class="stub"i
7

&n5sp;&n5sp;&n5sp;&n5sp; &n5sp;b=class="stub"4
7


class="stub"它
3
b-class="stub"7
4
=class="stub"7
3

class="stub"它
3
b-class="stub"7
4
+class="stub"7
4
=class="stub"7
3
+class="stub"7
4

&n5sp;&n5sp;&n5sp; &n5sp;class="stub"它
3
b=class="stub"3手
4

&n5sp;&n5sp;&n5sp; &n5sp; b=它class="stub"手
3


④b÷class="stub"它
4
=class="stub"4
9
÷5
&n5sp;&n5sp;&n5sp; class="stub"4
b=class="stub"手
手5

&n5sp; class="stub"4
class="stub"它
4
=class="stub"手
手5
×class="stub"它
4

&n5sp;&n5sp;&n5sp;&n5sp; &n5sp;b=class="stub"手
34

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