Question

Choose the correct answer from the given four options :

If `[(x + 2y, 3y),(4x, 2)] = [(0, -3),(8, 2)]` then the value of x – y is

Options

• – 3

• 1

• 3

• 5

Answer 1

`[(x + 2y, 3y),(4x, 2)] = [(0, -3),(8, 2)]`
Comparing, we get
3y = -3
⇒ y = `(-3)/(3)`  = -1
4x = 8
⇒ x = `(8)/(4)` = 2
x – y = 2 – (-1)
= 2 + 1
= 3.