Let's say that:
y=(2n-8)
y+8=2n
(y+8)/2=n
then switch the variables
(n+8)/2
Try it.
8 =? 2*8 - 4
8 =? 16 - 4
8 =? 12
8 is not a solution of the original equation
Try 4
4 = 2*4 - 4
4 = 8 - 4
4 = 4 and yes 4 works.
4 is unique. No other solution will work.
Answer:
2
Step-by-step explanation:
Answer:
C=47
B=133
Step-by-step explanation: