How do you solve the system of equations -x - 6y = - 10 and x + 9y = 16?

1 Answer
Apr 17, 2017

(-2,2)

Explanation:

You can go with substitution:
the second equation gives x=16-9y, so substituting in the first:
-16+9y-6y=-10, so 3y=6 Rightarrow y=2, and putting y=2 in the second equation we get x=-2