The ordered pair (7, 19) is only a solution to the first equation, 14-19= -5. the ordered pair is not a solution to the second equation 7 + 57 does not equal 22.
A system of equations is: B ) x + y = 375 x = 2 y - 60 We will solve this system: 2 y - 60 + y = 375 3 y = 435 y = 435 : 3 y = 145 x = 375 - 145 x = 230 Allan`s score was 230 and Dave`s score was 145.
