Question

Solve the equation 4 x - 8 = 7- x by trial and error method

Answer 1

First see that 4 x -8

we put 1:

LHS=-4

put 2:

LHS-0

put 3:-

LHS=4

See RHS now.

7-x

easy if x is 3 we get 4 as RHS

x=3 then only RHS=LHS.

So x=3.