How do you solve the system of equations #7x - 6y = 9# and #5x + 2y = 19#?
1 Answer
May 6, 2017
Explanation:
Use elimination:
Multiply the third equation by
So you have:
Add these equations together:
Solve for
Now plug this back into one of the original equations. I'll choose the second one:
Solve for
If you want, you can check to see if this works by plugging into the other equation: