Question

If x= 3k - 2, y = 2k is a solution of equation 4x - 7y + 12 = 0. then find k​

Answer 1

Answer:

k = 2

Step-by-step explanation:

4x - 7y + 12 = 0

4 [ 3k -2 ] - 7 [ 2k ] = -12

12k - 8 - 14k = -12

-2k = -12 + 8

-2k = -4

2k = 4

k = 2

Answer 2

Answer:

$x = 3k - 2 \\ y = 2k \\ (4 \times3k - 2) - (7 \times 2 k) + 12 = 0 \\ (12k- 8) - 14k + 12 = 0 \\ 12k - 14k - 8 + 12 = 0 \\ - 2k + 4 = 0 \\ - 2k = - 4 \\ 2k = 4 \\ k = 2$

this is anser