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Solving Equations by Substitution. Summer AP Chemistry Homework Math Review. Systems of Equations. Often times, we work with multiple equations and need to solve for multiple variables.
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Solving Equations by Substitution Summer AP Chemistry Homework Math Review
Systems of Equations • Often times, we work with multiple equations and need to solve for multiple variables. • Since we don’t want to use multivariable calculus, we need to use systems of equations to solve for all the variables!
Solving by Substitution • The key for systems of equations is to put one variable in terms of another variable. • Through this isolation process, you are then able to substitute this function into another equation to solve for the variable
Class Example Solve for all variables shown: 1. 2. n = 4m + 3 m + 2n = 60
Try it Out! Solve for all variables shown: 1. Y – 2x= 1 x + y = 16 2. y – 3x = 5 x + y = 25