Question

answer if u know this question..​

Answer 1

MATRICES

1. ( 3x * 4 ) - ( 7*2 ) = 0

12x - 14 = 0

12x = 14

x = 14/12 = 7/6

2. x - y = 2 ( i )

• x = 2 + y

2x - 3y = 1 ( ii )

2 ( 2 + y ) - 3y = 1

4 + 2y - 3y = 1

-y = 1-4 = - 3

• y = 3

x = 2 + y = 2 +3

• x = 5

Option D.

3. ( 16 - 4 ) = 3x - 2 - x - 6

12 = 2x - 8

20 = 2x

X = 10