Answer:
x +0y+0z = 400
-x +y+0z = 150
-8x +0y +z = 250
Step-by-step explanation:
The last column is the solution
The rest of the columns are the coefficients of the variables
x +0y+0z = 400
-x +y+0z = 150
-8x +0y +z = 250
Answer:idek school is very hard
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given
- 
The LCM of 4 and 5 is 20
= 
= 