That would be -4 for -9-(-4)
Answer:
B. 4 teachers : 25 students
Step-by-step explanation:
deberían ser 5 maestros o 20 estudiantes.
Answer:
9 is an odd number and 8 is an even number.
Step-by-step explanation:
2x - 3y = 9
2x + 3y = 3
__________ -
-6y = 6
y = -1
2x - 3y = 9
2x - 3(-1) = 9
2x - (-3) = 9
2x = 12
x = 6
