Question

If x=-1 y=2 is a solution of equations 3x+4y=k find the value of k

Answer 1

Step-by-step explanation:

x=1,y=2

3x+4y=k

3×1+4×2=k

or k=3+8

therefore k=11

Answer 2

Answer:

x=-1 , y=2

3x+4y=k

3×-1+4×2=k

-3+8=k

5=k

k=5