Question

solve the following equations by trial and error method - 3x + 2= 14

Answer 1

-3x +2 =14
-3x = 14 - 2
-3x= 12
X= -4

Answer 2

2-3x=14.

Putting 4 in x:

2-3(4)=14

2-12=14

Oh come on so close:

Okay if we change 2+12 then the solution will come.

Change 4 to -4:

2-3(-4)

=2+12=14[Bingo]

Hope it helps