Step-by-step explanation:
start by adding together the numbers in the right hand column
-1/5 + 1/2 u = -2/3
-6/30 + 15/30 u = -20/30
+6/30 +6/60
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15/30 u = -14/30
(15/30 u = -14/30) ÷ (15/30)
u = -14/15
u = -.933
f(x) = 6-5x
y = 6-5x .... replace f(x) with y
x = 6-5y .... swap x and y; solve for y
x+5y = 6
5y = 6-x
y = (6-x)/5
... replace y with the inverse function notation
<h3>
Answer: Choice D.</h3>
<span>
B) Determine y when x = 10 and solve the equation y = 18 (where you print y with the right side in your specification)</span>