Solve by Elimination

Solve the system by elimination.

• (2,5)

• (-2,5)

• (-2,-5)

• (2,-5)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system by elimination.

• (2,3)

• (-2,-3)

• (2,-3)

• (-2,3)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system by elimination.

• (4,-7)

• (-4,7)

• (4,7)

• (-4,-7)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system by elimination.

• (-8,5)

• (8,-5)

• (8,5)

• (-8,-5)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system by elimination.

• (3,-4)

• (-3,4)

• (3,4)

• (-3,-4)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system by elimination.

• (2,6)

• (-2,-6)

• (-2,6)

• (2,-6)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

To solve a system with elimination, we look for ​ ​ (a)   ​ . Then, we​ (b)   ​ and solve. Once we know that variable, we ​ (c)   .

• a match for one of the variables
• subtract e-very-thing
• plug in our answer to find the other
• are done
• plug in the "chunk" to the other equation
• a variable equal to a "chunk" of information

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6