Answer:
(-1, 5)
Step-by-step explanation:
using substitution method
y = -2x + 3 plug y into second equation
-x + 3y = 16
-x + 3 (-2x + 3) = 16
-x - 6x + 9 = 16
-7x + 9 = 16
-7x = 7
x = -1 now that you know what x equals, plug it into one of the original equations
y = -2 (-1) + 3
y = 2 + 3
y = 5
thus you get the answer (-1, 5)
