Question

Find the value of D_x for the equation 4x + 3y = 19 and 4x − 3y = −11

विकल्प

• 24

• 0

• − 24

• 108

Answer 1

− 24

Explanation:

Here, a₁ =  4, b₁ = 3, c₁ = 19

a₂ = 4, b₂ = -3, c₂ = -11

∴ D_x = `|(c_1, b_1),(c_2, b_2)| = |(19, 3),(-11, -3)|`

= -57 + 33

= -24