Question

(08.05)
Which of the following ordered pairs represents the solution to the system given below?

x − 4y = 7
5x + 9y = 6

Answer 1

@urbanmorgans

Answer 2

you got choices? you want to do it? you want to get the answer real fast?

Answer 3

(3, −1) (3, 1) (1, −3) (−1, −3)

Answer 4

here is the quick way
http://www.wolframalpha.com/input/?i=x+%E2%88%92+4y+%3D+7+%2C5x+%2B+9y+%3D+6

Answer 5

the slow way is to rewrite the first equation as \(x=4y+7\) then substitute in to the second and get
\[5(4y+7)+9y=6\] and solve that for \(y\)