This video shows the viewer how to solve simultaneous equations using a graph or 'graphing' as it is referred to. This is done by first rearranging both equations so that y is the object of both equations. The equations can then be solved via substitution – the video does not cover this. Using graphing the next step is to plot both of the lines onto the graph. This can be done by substituting varying values of x to give the y co-ordinates. The solution to the linear equation should be the point at which the two lines cross.
For more information on how to solve simultaneous equation using a graph please see the video.
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