its odd you're in high school and you're asking this but its 9
Answer:
Step-by-step explanation:
The resultant can be calculated using triangular law of vector addition as :
Y is the answer so thank me later
Answer:
25
Step-by-step explanation:
Y = -2x - 4
x + 4y = 19
x + 4(-2x - 4) = 19
x + (-8x) - 16 = 19
-7x - 16 = 19
-7x = 35
-x = 5
x = -5
y = -2x - 4
y = -2(-5) - 4
y = 10 -4
y = 6
Solution set {-5, 6} (C)