How do you solve this system of equations: #6x + 5y = 300 and 3x + 7y = 285#?
Using elimination we need to find a common denominator of the coefficient of either x or y; this one looks like x is easier:
LCD of 6 and 3 is 6 so let's multiply the second equation by
now add the equations together:
insert y into either of the original equations to solve for x: