问题
解答题
解下列方程. 5Y-2Y=18
|
答案
(1)5Y-2Y=18,
3Y=18,
3Y÷3=18÷3,
Y=6;
(2)
3 |
5 |
7 |
10 |
3 |
5 |
3 |
5 |
7 |
10 |
3 |
5 |
x=
1 |
10 |
(3)x-
3 |
4 |
1 |
12 |
x-
3 |
4 |
3 |
4 |
1 |
12 |
3 |
4 |
x=
5 |
6 |
解下列方程. 5Y-2Y=18
|
(1)5Y-2Y=18,
3Y=18,
3Y÷3=18÷3,
Y=6;
(2)
3 |
5 |
7 |
10 |
3 |
5 |
3 |
5 |
7 |
10 |
3 |
5 |
x=
1 |
10 |
(3)x-
3 |
4 |
1 |
12 |
x-
3 |
4 |
3 |
4 |
1 |
12 |
3 |
4 |
x=
5 |
6 |