Topic : Equation-System of Equations
from: category_eng
1.


2.


3.
????? ?????? ??? ???? ????

4.


5.


6.


7.


8.


9.


10.
You need two variables.

1.
Understanding
2.
Word problem
3.
Many Variables
????? ?????? ??? ???? ????
4. b
Many Variables
5.
Many Variables
6.
Many Variables
7.
8.
Calculation
9.
Calculation
10.
Application
You need two variables.