If you would like to solve the system of
equations, you can do this using the following steps:
x + 4y =
1 ... x = 1 - 4y
2x - 3y =
-9
__________
2x - 3y = -9
2
(1 - 4y) - 3y = -9
2 - 8y -
3y = -9
2 + 9 =
8y + 3y
11 = 11y
y = 1
x = 1 - 4y = 1 - 4 1 = 1 - 4 = -3
(x,
y) = (-3, 1)
The
correct result would be (-3,
1).
