Question

Solve the following system by the comparison method.

2p + q = 1
9p + 3q + 3 = 0

What is the solution set?


{(-2, 5)}
{(2, -5)}
{(-2, -5)}

Answer 1

what is the "comparison" method?

Answer 2

i really don't know :( @satellite73

Answer 3

plug in the numbers and see if they work, that is probably easiest

Answer 4

or else just solve
\[2p + q = 1 \\9p + 3q + 3 = 0\] the first one is the same as
\[q=1-2p\] substitute in to the second and get
\[9p+3(1-2p)+3=0\] and solve for \(p\)

Answer 5

you got this?

Answer 6

yeah i got it thank ya @satellite73

Answer 7

yw