Working With Real Numbers

The sum of a real number and its opposite is 0. a + (-a) = 0 and (-a) + a = 0 Property of the Opposite of a Sum. For all real numbers a and b:-(a + b) = (-a) + (-b) Rules for Addition Examples If two numbers have the same sign, add their absolute values and put their common sign before the result. If two numbers have opposite signs, subtract ... ................
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