Multiple Step Linear Equation

• -6

• 6

• 4

• -4

Tags

CCSS.7.EE.B.4A

• 12

• -12

• 48

• -48

Tags

CCSS.8.EE.C.7B

• 1

• -1

• 7

• -7

Tags

CCSS.7.EE.B.4A

• 10

• -10

• 5

• -5

Tags

CCSS.8.EE.C.7B

• -4

• 4

• 7

• -7

Tags

CCSS.8.EE.C.7B

• m = -5

• m = 5

• m = 10

• m = 3

Tags

CCSS.8.EE.C.7B

• Add the x terms in the two equations and the y terms in the two equations so you get 3x + 8y = 11

• Multiply all terms in the top equation by 2 so that you  can eliminate the x terms

• Multiply the x in the first equation by -2 so you get -2x + y = 2

• Multiply all terms in the top equation by -2 so that you can eliminate the x terms. 

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Describe the error in solving the system of equations using elimination:

• They eliminated the x terms when they should have eliminated the y terms.

• The subtracted 5x and x to get 4x, but they should have added the x terms to get 6x = 24.

• They added 16 and 8 to get 24, but they should have subtracted them to get 8 on the right side of the equation.

• They eliminated the y terms, but they couldn't because one is a negative and one is a positive.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

• (16,19)

• (19,-16)

• (-19,-16)

• (19,16)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

• -1

• 6

• 1

• -6

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6