Given,

We need to find the value of a, b, c and d.

As,

⇒

As both matrices are equal so their corresponding elements must also be equal.

∴ 3a = a + 4

⇒ 2a = 4

⇒ a = 2

Similarly,

3b = 6 + a + b

⇒ 2b = 6 + a

As from above a = 2

∴ 2b = 6+2 = 8

⇒ b = 4

Also 3d = 2d + 3

⇒ d = 3

And,

3c = -1 + c + d

⇒ 2c = d – 1

⇒ 2c = 3-1

⇒ c = 2/2 = 1

Thus a = 2, b = 4, c = 1 and d = 3.