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.
14x-6=-4+48
18x-6=48
18x=54
X=3
-3(3)+48=41
14(3)-6=36
No solution
