Systems: Substitution Equations

What is the correct substitute equation for:

y=3

2x+3y=17

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the correct substituted equation for:

y=6x

y=2x+4

• 6x=2x+4

• y=2(6)+4

• y=2x+6x+4

• 2x+6x=4

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the correct substituted equation for:

y=-3

2x+3y=17

• 2x + 3y = 10
• 2x + 3(3) = 17

• 2x 3(-3) = 17

• 2x - 3 = 17

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the correct substituted equation for the following system?

3x+y=-4

y=-6x+2

• 3x + y = -4
• y = 6x - 2
• 3x + 6x = -4
• 3x + (-6x + 2) = -4

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the correct substituted equation for the following system?

-3x+y=11

y=2x-4

• y = 3x - 4
• -2x + y = 11
• -3x + (x + 4) = 11
• -3x + (2x - 4) = 11

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the correct substituted equation for the following system?

4x-y=9

y=3x+5

• 4x - (3x + 5) = 9

• 4x + 3x = 9

• 4x - y = 9

• y = 4x - 5

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the correct substituted equation for:

y=5x-3

2y+3x=12

• 5x - 3 = 12

• 2y + 3x = 12

• 2(5x - 3) + 3x = 12

• 2y - 3x = 12

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the correct substituted equation for the following system?

2x+3y=7

y=x-1

• 2x + 3(x - 1) = 7

• 2x + 3y = 7

• 2x - 3y = 7

• y = 2x - 1

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Mathematical Equivalence

ON

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Mathematical Equivalence

ON

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6