Question

solve 4x-2= 18 by trial and error method​

Answer 1

Answer:

4x-2=18

let x=1 then ans is 4×1-2=2

let x=2 then ans is 4×2-2=6

let x=3 then ans is 4×3-2=10

let x=4 then ans is 4×4-2=14

let x=5 then ans is 4×5-2=18

so ans is 5