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Re: The operation @ is defined by the equation a@b = (a – 1)(b – [#permalink]
Functions and Custom Character Problem

The operation @ is defined by the equation a@b = (a – 1)(b – 2) and we need to find the value of x, given that

x@5 = 3@x
=> (x-1)*(5-2) = (3-1)*(x-2)
=> (x-1)*3 = 2*(x-2)
=> 3x - 3 = 2x - 4
=> 3x-2x = 3 - 4 = -1
=> x = -1

Clearly, Quantity B > Quantity A (x=-1)

So, Answer will be B
Hope it helps!

Watch the following video to learn the Basics of Functions and Custom Characters

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