Elimination Method of Systems

Solve by elimination:
3x + 7y = 23
-3x - 7y = -17

• No solution

• Infinite number of solutions

• (-3,3)

• (3,3)

Tags

CCSS.8.EE.C.8B

Solve the system by elimination.  

−8x − 10y = 20
−8x − 6y = −4 

• Infinite number of solutions  

• (6, 5) 

• (−6, −5) 

• (5, −6) 

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve by elimination:
9x-4y=7

x-4y=-17

• (-1,5)

• (-7,5)

• (7,5)

• (3,5)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

How do we begin solving this system of equations using the elimination method. Use your notes if necessary.

• Subtract the two equations

• Multiply one equation by -1 and then subtract the equations

• Multiply the first equation by the second x (or y) coefficient, multiply the second equation by the first x (or y) coefficient, then subtract the equations

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

How do we begin solving this system of equations using the elimination method. Use your notes if necessary.

• Subtract the two equations

• Multiply one equation by -1 and then subtract the equations

• Multiply the first equation by the second x (or y) coefficient, multiply the second equation by the first x (or y) coefficient, then subtract the equations

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

How do we begin solving this system of equations using the elimination method. Use your notes if necessary.

• Subtract the two equations

• Multiply one equation by -1 and then subtract the equations

• Multiply the first equation by the second x (or y) coefficient, multiply the second equation by the first x (or y) coefficient, then subtract the equations

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

How do we begin solving this system of equations using the elimination method. Use your notes if necessary.

• Subtract the two equations

• Multiply one equation by -1 and then subtract the equations

• Multiply the first equation by the second x (or y) coefficient, multiply the second equation by the first x (or y) coefficient, then subtract the equations

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

How do we begin solving this system of equations using the elimination method. Use your notes if necessary.

• Subtract the two equations

• Multiply one equation by -1 and then subtract the equations

• Multiply the first equation by the second x (or y) coefficient, multiply the second equation by the first x (or y) coefficient, then subtract the equations

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

How do we begin solving this system of equations using the elimination method. Use your notes if necessary.

• Subtract the two equations

• Multiply one equation by -1 and then subtract the equations

• Multiply the first equation by the second x (or y) coefficient, multiply the second equation by the first x (or y) coefficient, then subtract the equations

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

How do we begin solving this system of equations using the elimination method. Use your notes if necessary.

• Subtract the two equations

• Multiply one equation by -1 and then subtract the equations

• Multiply the first equation by the second x (or y) coefficient, multiply the second equation by the first x (or y) coefficient, then subtract the equations

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6