Question

if(ab-b +1=0)&(bc-c+1=0),then what is the value of (a-ac)equal to?

Answer 1

Answer: 1

Step-by-step explanation:

Hey, tricky que.

To find: a-ac

a-ac= a(1-c)

From 2nd eq.

bc-c+1=0

1-c=-bc ......(A)

We got 1-c , we have to find a

From 1 eq.

ab-b+1=0

a=(b-1)/b

Putting in a(1-c)

(b-1)(-bc)/b

-bc+c

Putting bc from 2nd eq.

-(c-1)+c

=1

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