Warm Up Solve by graphing Solve by substitution.

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Presentation transcript:

Warm Up Solve by graphing Solve by substitution

Homework Check 5.5 14 suitcases 60 boxes 4.5 hours 60 dolls a) y = 3/4x – 15/4 b) y = -4x + 16 a) m = ¾ b = -15/4 b) m = -4 b = 16

Solving Systems by Elimination

Elimination We can solve by elimination by either Adding or Subtracting two equations to eliminate a variable!

Example Solve by Elimination 4, -1

Example Solve by Elimination -2, 1

Try Some! Solve the systems by elimination. 1. 2. -1,-1 -1, 8

Solving with Elimination Scalar Multiplication

Example Solve the system by elimination.

Special Solutions Solve each system by elimination. 1. 2.