Question

if2x+3y=4 and 6x-ky=12 represent dependent equation to findvalue of k​

Answer 1

Answer:9

Step-by-step explanation:solution is given below

Answer 2

Solving 2x+3y=4 and 6x-ky=12 gives, 'k' value as -9.

◆Given equations are,

2x + 3y = 4 --(1)

6x - ky = 12. --(2)

◆Solving , by MULTIPLYING 3 × equation (1). That is, every element of the equation is multiplied by 3 in both LHS and RHS. This gives equation (3).

◆6x + 9y = 12 -- (3)

◆SUBTRACT ,equation (3) - equation (2)

6x + 9y = 12 -- (3)

6x - ky = 12. -- (2)

__________

(9+k )y = 0

◆9+k = 0

◆K = -9. Hence the answer.