How to solve Simultaneous Linear Equation

Solving Simultaneous Linear Equation is one of the topic to be asked in Mathematics SPM Examinations. Many of the students don't know how to solve it. Actually they've been learned this topic in form 3.

Below is an example:

Make the coefficient of g the same in both equations by multiplying equation 1 by 4.

The terms in g can be eliminated by subtracting the equations

Substitute the value of h into any equation (I choose equation 1)