1. Homework Review: Sect 6.3 # 8 – 18 evens

2. Section 6.4 Elimination/linear combination (Day 1)
Solve systems of linear equations using elimination with multiplication.
SWBAT:

3. Solve By Linear Combination/Elimination
STEP 1: Standard form Ax + By = C
STEP 2: Multiply so x or y will cancel out.
(make one of the variables opposites)
STEP 3: Add and solve
STEP 4: find other variable.
STEP 5: Check

4. Ex. 1: Solve the System – Elimination
Multiply so both equations have opposite terms to cancel out.
5x + 6y = -8 
2x + 3y = -5 

5. Ex. 2: Solve the System – Elimination
6x – 2y = 10 
3x – 7y = -19  _________

6. Ex. 3: Solve the System – Elimination
9r + q = 13 
3r + 2q = -4  __________

7. Ex. 4: Multiply Both Equations
4x + 2y = 8 
3x + 3y = 9  __________

8. Ex. 5: Multiply Both Equations
y = -2x 
8x + 4y = 12  __________

9. Ex. 6: Multiply Both Equations
2x - y = 11 
6x - 3y = 15  __________

10. Homework
Worksheet – Evens Only
Turkey Project due Tuesday!