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Published on Jun 22, 2015
Solving a simple linear equation 5x-7 = 8 is visualized with a mapping diagram for a composite linear function: f(x) = 5x-7= s(m(x)) where m(x) = 5x and s(x)=x-7. For a corrected version (1 second removed) go to https://youtu.be/asTaCfD4joI