Question

Solve the system of equations.
{ x+6y=-23
{9x+5y=-60

Answer 1

x=-23-6y
Plug in this value for x in the other equation.
9(-23-y)+5y=-60
Simplify.
-207-9y+5y=-60
-207-4y=-60
-4y=147
y=-36.75
Substitute y back into the first equation.
x=-23-6(-36.75)
x=-23+220.5
x=197.5

Answer 2

So is it (-6,-2)
(5,-2)
(-5,-3)
Undefined

Answer 3

ktruman, you need to look at your substitution again. It should be 23-6y, not -23-y.