Bellwork
Unit 16 Systems of Equations
Solve each system using Substitution
Elimination
x + 2y = 14
y = 3x - 14
SPI 3.9 Solve systems of linear
equations/inequalities in two variables
Agenda
Solve Systems of Equations using Elimination
x+y=2
3-y=x
Apr 4­10:02 AM
Apr 4­10:21 AM
2x + 5y = 17
6x - 5y = -9
-3x - 3y = 9
3x - 4y = 5
Elimination
Elimination
Apr 4­10:23 AM
5x - 6y = -32
3x + 6y = 48
TRY
Elimination
Apr 4­10:23 AM
Apr 4­10:23 AM
2x + 2y = 202
5x + 2y = 328
Elimination (Mult. by negative 1)
6
1
5x - 4y = - 8
5x - 4y = - 4
12x + 8y = 0
12x + 6y = 42
TRY
Elimination (Mult. by negative 1)
Apr 4­10:23 AM
Elimination (Mult. by negative 1)
Apr 4­10:23 AM
6x - y = 11
-2x - 3y = -7
-2x + 15y = -32
7x - 5y = 17
Elimination (Multiply)
9
Elimination (Multiply)
Apr 4­10:23 AM
2