Systems of equations and inequalities

OpenStax

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Introduction to systems of equations and inequalities

Systems of linear equations: two variables

1 Introduction to systems of equations

2 Solving systems of equations by graphing

3 Solving systems of equations by substitution

4 Solving systems of equations in two variables by the addition method

5 Identifying inconsistent systems of equations containing two variables

6 Expressing the solution of a system of dependent equations containing

7 Using systems of equations to investigate profits

9 Section exercises

15 Real-world applications

Systems of linear equations: three variables

Systems of nonlinear equations and inequalities: two variables

Partial fractions

Matrices and matrix operations

Solving systems with gaussian elimination

Solving systems with inverses

Solving systems with cramer's rule

Source: OpenStax, Precalculus. OpenStax CNX. Jan 19, 2016 Download for free at https://legacy.cnx.org/content/col11667/1.6

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