Question

if a=15,b=9,c=14 show that (a-b)-c=a-(b-c)?​

Answer 1

Answer + Step-by-step explanation:

We substitute the corresponding values to get

(15 - 9) - 14 = 15 - (9 - 14)

We solve the parenthesis to get

6 - 14 = 15 - (-5)

We first simplify the RHS (Right Hand Side) to get

6 - 14 = 20

So, this is not true. Also, I thought instead of "-" you meant "+" c. Then this would be proof that this is correct.

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