Simplify 4/(n+7)-7/(n-2)

Simplify 4/(n+7)-7/(n-2). We learn how to simplify 4/(n+7)-7/(n-2) in this free online math video lesson on Adding and Subtracting Rational Expressions. This video explains how to add a rational expression and how to subtract a rational expression and simplify each expression. We have to find a common denominator before we add or subtract the rational expression 4/(n+7)-7/(n-2). #addingrationalexpressions #subtractingrationalexpressions #minutemath

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