Question

Pick out the solution from the values given within brackets:

$\mathrm{y}+8=20$ $(12,20,8,0)$

Answer 1

Using Trail & Error Method we can obtain the solution of the equation $\mathrm{y}+8=20$ among the bracket

Put $\mathrm{x}=12$ in the given equation, we get

$\mathrm{y}+8=12+8=20$

Put $\mathrm{x}=20$ in the given equation, we get

$\mathrm{y}+8=20+8=28$

Put $\mathrm{x}=8$ in the given equation, we get

$\mathrm{y}+8=8+8=16$

Put $\mathrm{x}=0$ in the given equation, we get

$\mathrm{y}+8=0+8=8$

Based on the above results, it is evident that $\mathrm{x}=12$ is the solution of the given equation.