Question

Find the solution of 4x+y=20

Answer 1

Answer:

4x+y= 20

y=20-4x

when x=1

y=20-4 ×1

y=20-4

y= 16

when x=2

y=20-4×2

y=20-8

y=12

when x=5

y=20-4×5

y=20-20

y=0