How do you solve 3x + 5y = 44 and 8x - 7y = -25?
1 Answer
May 17, 2016
Explanation:
Use simultaneous equations.
Times the top equation by 8 and the bottom equation by 3 to make the x terms equal.
Take the two equations away from each other. This will cancel out the x terms.
Therefore
To find x, substitute this y value into one of the equations. So,