Alissa Fong

MA, Stanford University
Teaching in the San Francisco Bay Area

Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts

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Solving a System of Linear Equations in Two Variables - Problem 13

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Solving a System of Linear Equations in Two Variables - Problem 12

Alissa Fong
Alissa Fong

MA, Stanford University
Teaching in the San Francisco Bay Area

Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts

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Anything that has a fixed starting amount and a constant change can be modeled using a y = mx+b type equation where m is the change, or slope, and b is the starting amount, or y intercept. If you can create two equations in y = mx+b form, then you can solve using substitution. Be sure to clearly define what your variables represent so that you can interpret your solution in the context of the problem.

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