6.3 Elimination day 4.notebook
6.3 Solving Linear Systems by Elimination
October 24, 2016
2.
A linear combination of two equations is an equation obtained by
adding one of the equations to the other.
3y + 4x = -10
y - 4x = 2
WE USE THIS WHEN BOTH EQUATIONS ARE IN
STANDARD FORM!!!
Type 1
1.
4x + 3y = 16
2x - 3y = 8
Oct 26­4:47 PM
3. -2y + 3x = -10
2y - 3x = 2
Oct 26­5:48 PM
Type 2
4. 2y - x = 5
-y - x = -4
Oct 26­5:59 PM
5.
Oct 26­5:56 PM
6.
-3x - 3y = 6
2x - 3y = -9
Oct 26­6:00 PM
3y - 4x = -1
y + 2x = 3
Oct 16­7:12 AM
1
6.3 Elimination day 4.notebook
7.
October 24, 2016
8.
2x - 3y = 0
3x - 2y = 5
5x + 4y = 9
4x + 5y = 9
Oct 16­7:13 AM
Oct 16­7:13 AM
Classwork: p.382 #8 - 26 even (omit 14)
9.
4x - 7y = 15
-8x + 14y = -30
Final Five
What is the value of the y-coordinate of the solution to
the given system?
4x + 3y = 33
3x + 2y = 23
Oct 16­7:13 AM
Oct 22­2:53 PM
2