Tutoring math, you mention definitions. The tutor defines associative. associative(adj): independent of grouping: for instance, (a+b)+c = a+(b+c), meaning that addition is associative. Multiplication is associative as well. Source: Gallian, Joseph A. Contemporary Abstract Algebra. Toronto: D.C. Heath and Company, …

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The tutor covers a day-to-day issue in high school algebra. Consider the following problem: 14=5/(3x) Solution: First, multiply both sides by 3x: 3x(14)=(3x)*5/(3x) The right side is now both divided and multiplied by 3x, so they cancel there: 3x(14)=5 On …

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