Chapter 7.3 Solving Systems by Elimination (Part 1)
Algebra 1
Objective:
Use addition or subtraction to solve a system of equations.
A. Use addition to solve each system of equations.
Ex. 1
3x ­ 3y = 15 and 2x + 3y = ­5
Ex. 2
3x ­ 2y = ­12 and 2x + 2y = 2
B. Use subtraction to solve each system of equations.
Ex. 3
4x + 2y = 15 and 2x + 2y = 7
Ex. 4
4x + 3y = 2 and 3y = ­5x ­2
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