题目内容

求x.
2
3
:(x+1)=
1
4
2
5
506×3-
3
2
x=33.
(1)
2
3
:(x+1)=
1
4
2
5

1
4
x+
1
4
=
2
3
×
2
5

1
4
x+
1
4
-
1
4
=
4
15
-
1
4

1
4
x÷
1
4
=
1
60
÷
1
4

x=
1
15


(2)506×3-
3
2
x=33,
1518-
3
2
x+
3
2
x=33+
3
2
x,
1518-33=33+
3
2
x-33,
1485÷
3
2
=
3
2
x÷
3
2

x=990.
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