If the Value of Deteminant (3, 4),(-2, X) is 23, Then Find the Value Of X. - Algebra

Sum

If the value of determinants |(3, 4),(-2, "x")| is 23, then find the value of x.

Solution

|(3, 4),(-2, "x")| = 23

3x - (- 8) = 23

3x + 8 = 23

3x = 23 - 8

∴ 3x =15

∴ x = 15/3`

∴x = 5

Is there an error in this question or solution?