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This demo takes some thought so you may want to watch it a few times to fully understand. Writing the expression and then we simplify it so that it is more usable in future.
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Shows how to determine the boderline separating the side of the x-y graph that has true solutions from the side that does not. It is then shown how to decide whether that line should be dotted or…
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Describes how and why the slopes of parallel and perpendicular lines can be found
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Multiplying both sides by the reciprocal of the variable's coefficient in order to get the variable alone and keep the equation balanced.
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Adding the same fraction to both sides so the variable is left by itself
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The next step in understanding distribution.
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Three quick demos, two subtractions and an addition which need adjusting first to create a common denominator
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Using long division to change a proper or improper fraction to its decimal value - repeating or terminating are the only possibilities.
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