Question

15. If x= -1, y = 2 is a solution of the equation 3x + 4y = k, find the value of k.​

Answer 1

Answer:

k=5

Step-by-step explanation:

3x+4y=k

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

-3+8=5

k=5

Answer 2

Answer:

k =5

Step-by-step explanation:

Given= x =-1, y= 2

put the value of x and y in the equation

3x+4y=k

3 x -1 + 4 x 2 = k

k = -3+8

k= 5