Essay

Training Guide for Combining and Simplifying Material Cost Formulas

Imagine you are an operations manager at a custom cabinetry business. To help onboard a new scheduling assistant, you are drafting a section of the standard operating procedures (SOP) manual. The manual needs to describe how to combine and simplify two project cost estimation formulas modeled by the rational expressions 9x+14x+7\frac{9x+14}{x+7} and x2x+7\frac{x^2}{x+7}.

Recall and write down the step-by-step mathematical procedure that the assistant must follow to add these two expressions and simplify the result to its lowest terms. In your essay, clearly list the three standard steps of this simplification process, including how to handle the common denominator, how to factor the resulting trinomial, and which binomial factor must be canceled.

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Updated 2026-06-17

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