Bell Work 1. Solve using substitution y = 3x + 4

Bell Work
1. Solve using substitution
y = 3x + 4
-3y + 2x = 10
2. Solve using elimination
2x + 3y = 10
4x – 3y = 2
6.4 Elimination pt. 2
Example #1
5x + 6y = -8
2x + 3y = -5
Example #2
9r + q = 13
3r + 2q = -4
Example #3
4x + 2y = 8
3x + 3y = 9
Example #4
6a + 2b = 2
4a + 3b = 8
Example #5
A canoeist travels 4 miles downstream in
1 hour. The return trip takes the
canoeist 1.5 hours. Find the rate of the
boat in still water.
Homework:
6.3 (pg. 354) #8,10,12
6.4 (pg. 360) #10,12,14,16,19,20