Question

Solve the system of equations by substitution

x=-4y
x+5y=2

(-8,2)
(8,-2)
(2/9,8/9)
(-12,3)

Answer 1

Substitute x = -4y into x+5y = 2.
-4y + 5y = 2
y = 2. Substitute this value into the first equation: x = -4 × 2 = -8.
So the answer is (-8,2).