You plug 7 in for x
Therefore, f(7)=7-2=5
So f(7)=5
6a + 3b for a = 7 and b = 11
6(7) + 3(11)
42 + 33
75
hope this helps
Answer:
sorry i can't didn't understand question
Step-by-step explanation:
sorry
Let x be the common factor between chickens and ducks. Then:
6x/(5x-63)=3/1
15x-189=6x
9x=189
x=21
6x=123 chickens were on the farm
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