Question

Find the value of k, if x = 3, y = -1 is a solution of the equation 3x – 4y – 2k = 2

Answer 1

Answer:

3x- 4y- 2k= 2

3(3) - 4(-1) - 2k= 2

9 - (-4) - 2k= 2

9+4-2k=2

13 - 2k= 2

13-2= 2k

11= 2k

k= 11/2

k= 5.5

Answer 2

Answer:

k=7.5

Explanation:

3x-4y-2k=2

3(3)-4(-1)-2k=2

9+4-2k=2

13+2=2k

15÷2=k

k=7.5