题目内容
解方程、解比例.
X+
X=35
4X-6=18
2:17=16:X.
X+
| 1 |
| 4 |
4X-6=18
2:17=16:X.
(1)x+
x=35,
x=35,
x÷
=35÷
,
x=28;
(2)4x-6=18,
4x-6+6=18+6,
4x=24,
x=6;
(3)2:17=16:x,
2x=16×17,
2x=272,
2x÷2=272÷2,
x=136.
| 1 |
| 4 |
| 5 |
| 4 |
| 5 |
| 4 |
| 5 |
| 4 |
| 5 |
| 4 |
x=28;
(2)4x-6=18,
4x-6+6=18+6,
4x=24,
x=6;
(3)2:17=16:x,
2x=16×17,
2x=272,
2x÷2=272÷2,
x=136.
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