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ELIMINATION
USING
MULTIPLICATION
SECTION 6.4 PAGES 357-362
SOLVING BY ELIMINATION USING
MULTIPLICATION
• Multiply at least one of the equations by a constant to get opposite terms.
• Add the equations – eliminating one variable
• Solve the resulting equation for the remaining variable
• Substitute the solution from solving into one of the equations
• Solve for the remaining variable
• State your solution as an ordered pair
5𝑥 + 6𝑦 = −8
2𝑥 + 3𝑦 = −5
Solve the System
6𝑥 − 2𝑦 = 10
3𝑥 − 7𝑦 = −19
Solve the System
9𝑥 + 𝑦 = 13
3𝑥 + 2𝑦 = −4
Solve the System
4𝑥 + 2𝑦 = 8
3𝑥 + 3𝑦 = 9
Solve the System
5𝑥 − 3𝑦 = 6
2𝑥 + 5𝑦 = −10
Solve the System
6𝑥 + 2𝑦 = 2
4𝑥 + 3𝑦 = 8
Solve the System
HOMEWORK
PAGE 360 #7-18

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6.4 elimination using multiplication