题目内容
求x.
| 506×3-
|
(1)
:(x+1)=
:
,
x+
=
×
,
x+
-
=
-
,
x÷
=
÷
,
x=
;
(2)506×3-
x=33,
1518-
x+
x=33+
x,
1518-33=33+
x-33,
1485÷
=
x÷
,
x=990.
| 2 |
| 3 |
| 1 |
| 4 |
| 2 |
| 5 |
| 1 |
| 4 |
| 1 |
| 4 |
| 2 |
| 3 |
| 2 |
| 5 |
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 4 |
| 4 |
| 15 |
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 60 |
| 1 |
| 4 |
x=
| 1 |
| 15 |
(2)506×3-
| 3 |
| 2 |
1518-
| 3 |
| 2 |
| 3 |
| 2 |
| 3 |
| 2 |
1518-33=33+
| 3 |
| 2 |
1485÷
| 3 |
| 2 |
| 3 |
| 2 |
| 3 |
| 2 |
x=990.
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