Algebra: A Combined Approach (4th Edition)

Check each ordered pair by replacing x and y in the system of equations. a. 5(-6) - 6(-8) = 18 -30 + 48 = 18 18 = 18; True 2(-8) - (-6) = -4 -16 + 6 = -4 -10 = -4; False b. 5(3) - 6($\frac{5}{2}$) = 18 15 - 15 = 18 0 = 18; False 2($\frac{5}{2}$) - 3 = -4 2 = -4; False Neither a or b satisfy both equations.