CCSS.Math.Content.HSA.REI.C.5

Solve by elimination 
-6x+y= -2
-3x-6y= 12

• (2,0)
• no solution 
• (0,-2)
• infinite solutions 

Tags

CCSS.Math.Content.HSA.REI.C.5

Solve the system by elimination.  

4x + 12y = −1
−3x − 9y = 0 

• (10, 1) 
• (−10, −1) 
•  (10, −1) 
•  No solution 

Tags

CCSS.Math.Content.HSA.REI.C.5

Solve the system by elimination.  

4x + 12y = −1
−3x − 9y = 0 

• (10, 1) 
• (−10, −1) 
•  (10, −1) 
•  No solution 

Tags

CCSS.Math.Content.HSA.REI.C.5

One brand of suntan lotion comes in a small size with x ounces of lotion and a regular size with y ounces of lotion.  Given the equations below how can we eliminate the terms with x?
x+2y = 15
2x + y = 19.5

• subtract the two equations from each other
• multiply the second equation by -1 and add the two equations
• multiply first equation by 2, multiply the second equation by 1 then add them
• multiply the first equation by -2 then add the equations together 

Tags

CCSS.Math.Content.HSA.REI.C.5

a method to solving a system of equations by getting rid of one of the variables first to solve for the other variable. 

• Systems by Graphing
• Systems by Substitution
• Systems by Elimination
• Systems by Drawing

Tags

CCSS.Math.Content.HSA.REI.C.5

What is reason 5?

• Transitive Property
• Reflexive Property
• Symmetric Property
• Prove

Tags

CCSS.Math.Content.HSA.REI.C.5

What variable do you eliminate, and what do you multiply the equation(s) by?

5x + y = 9

10x − 7y = −18

• You eliminate x, and multiply the top equation by -2

• You eliminate y, and multiply the top equation by 7

Tags

CCSS.Math.Content.HSA.REI.C.5

When using any of the 3 methods to solve a system of linear equations the resulting solution is the same no matter which method is used.

• True; using any method will result in the correct solution.

• False; the solution varies because the solution depends on which method is used.

Tags

CCSS.Math.Content.HSA.REI.C.5

Solve the following system by using elimination:

-2x + 3y = 5

-5x + 2y = 29

• (-7, -3)

• (-7, 3)

• (7, -3)

Tags

CCSS.Math.Content.HSA.REI.C.5

Solve the following system by using elimination:

-2x - 5y = -15

x + 8y = 13

• (5, 1)

• (5, -1)

• (-5, 1)

Tags

CCSS.Math.Content.HSA.REI.C.5