Answer:
e. None is correct, because the use of brackets is wrong!
A. x/y = (5k-3)/(2-k)
B. x:y = (5k-3):(2-k)
C. x=y(5k-3)/(2-k)
Are the correct use of brackets.
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a = 10
Step-by-step explanation:
From the solution given, x = a and y = -1
Substitute for x and y in either of the equations
y = -x + 9
-1 = -a + 9
a = 9 + 1 = 10
