Question

Solve the following system of equations using the substitution method
x+3y=11
xy=8

Answer 1

x = 11-3y
(11-3y)y=8
11y-3y^2-8=0
3y^2-11y+8=0
y = 2 and 2 thirds
or y = 1
no plug it into the x = 11 -3y
x = 3
x = 8
(3,2 and 2 thirds)
(8,1)