题目内容
解方程或比例.
(1)8x+2x=120
(2)
=
.
(1)8x+2x=120
(2)
| 24 |
| x |
| 12 |
| 5 |
(1)8x+2x=120,
10x=120,
10x÷10=120÷10,
x=12;
(2)
=
,
12x=24×5,
12x÷12=120÷12,
x=10.
10x=120,
10x÷10=120÷10,
x=12;
(2)
| 24 |
| x |
| 12 |
| 5 |
12x=24×5,
12x÷12=120÷12,
x=10.
练习册系列答案
相关题目