Given that A#B#C=2A-3B+5C, what is the value of 3#(-2)#4?

[ffarg]

Given that A#B#C=2A-3B+5C, what is the value of 3#(-2)#4?

What do I do with the "#" symbol?

 

[soroban]

Re: What do I do with the "#"?

Hello, ffarg!

It's an exercise in "translating" . . .

Given that: \(\displaystyle \:A\,\#\,B\,\#\,C \:=\: 2A\,-\,3B\,+\,5C\),
what is the value of \(\displaystyle 3\,\#\,(-2)\,\#\,4\) ?

They told us that \(\displaystyle A\,\#\,B\,\#\,C\) means:
. . "2 times the first number, minus 3 times the second, plus 4 times the third".

So \(\displaystyle \,3\,\#\,(-2)\,\#\,4\) means: \(\displaystyle \:2(3)\,-\,3(-2)\,+\,4(4)\;=\;6\,+\,6\,+\,16\;=\;28\)

 

[stapel]

What do I do with the "#" symbol?

Slightly off-topic: The "#" symbol is often pronounced "shuh-BANG".

Eliz.