Solving 2x2 Systems of Equations - University of Minnesota

Solving 2x2 Systems of Equations

University of Minnesota

Solving 2x2 Systems of Equations

Preliminaries and Objectives

Preliminaries ? Graphs of Lines ? Algebraic Skills ? Distributive Law ? Combining Like Terms ? Solving Linear Equations

Objectives ? Determine if two lines intersect ? Find the intersection of two lines

University of Minnesota

Solving 2x2 Systems of Equations

Intersecting Lines

3x - 5y = 4 x = 4y - 1

y

x

University of Minnesota

Solving 2x2 Systems of Equations

Substitution Method

3x - 5y = 4 x = 4y-1

University of Minnesota

Solving 2x2 Systems of Equations

Substitution Method

3x - 5y = 4 x = 4y-1

3( 4y-1 ) - 5y = 4

University of Minnesota

Solving 2x2 Systems of Equations

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