Question

Solve these equations by trial and error method and systematic method.

Actually I don't know what is the trial and error method and systematic method. Can you explain and show some examples plz? Thank you :)​

Answer 1

Trial and error means first take any value of x and then see which is appropriate for x and then apply the perfect value for x. For example

x+1/2=19

let x=5,then

5+1/2=19

11/2=19,which is incorrect

now let x=15,then

15+1/2=19,which is incorrect

so as you know the correct answer is 35/2 so now take let x=18/5

now 35/2+1/2=19

so, x=35/2