What would you eliminate?
What variable would you choose to eliminate for this problem?
2x + 3y = 10
4x - 3y = 1
You would eliminate the y variable.
In order to eliminate the y term, what would you do?
-3x + 5y = -18
4x + 5y = -11
You would subtract the two equations
Fill in the blank:
2 __ -2 = 0
+
How would I eliminate these two variables (make them go to zero)
2x
2x
You would subtract them
What is the solution to this system?
x + y = 2
x + 2y = 1
(3,-1)
What variable would you choose to eliminate for this problem?
-x + 3y = -1
x + y = -3
You would choose the x variable
In order to eliminate the y term, what would you do to these two equations?
-3x + 5y = -8
x - 5y = -24
You would add them together
Fill in the blank:
4 __ 4 = 0
-
How would I eliminate these two variables (make them go to zero)
2x
-2x
You would add them
What is the solution to this system?
3x + 2y = 2
x - 2y = 6
(2,-2)
What variable would you choose to eliminate for this problem?
3x + 4y = 16
3x - 4y = -16
You could choose either one!
In order to eliminate a variable, what would you do to these equations?
5x + 4y = 20
5x - 4y = 20
You could either add or subtract, depending on the variable you want to cancel.
Fill in the blank:
-172 __ -172 = 0
How would I eliminate these two variables (make them go to zero)
6x
2x
You would multiply the 2x by 3 then subtract them
What is the solution to this system?
x + y = 5
x - y = 1
(3,2)