Frequent Questions about our Solver

The problem

Answer provided by our tutors

You have typed in:

y = 2(-1) - 1

'2' multiplied by '(-1)' equals '-2' 

'-2 - 1' equals '-3'

Or in short:

2*(-1) - 1 = - 2 - 1 = - 3

That is why you get:

y = -3

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