Answer:
4
Step-by-step explanation:
17-5=12
12
3 = 4
Answer: homogeneous
Step-by-step explanation:
Answer:
Step-by-step explanation:

Answer:
x = 1
y = - 2
Step-by-step explanation:
3x + y = 1
x - y = 3
___________ +
3x + x + y - y = 1 + 3
4x = 4
x = 1
3(1) + y = 1
y = 1 - 3
y = - 2