Solving Equations

Which operation will cancel out multiplication?

• A.  Addition
• B. Subtraction
• C. Multiplication
• D. Division

Tags

CCSS.HSA.REI.A.1

Translate: 
Four times a number plus six is 30.

• 4 + 6 = 30
• 4x + 6 = 30
• x + 4 times 6 = 30
• 30 = 4x

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.6

Solve:
3x + 7 = 28

• x = -11
• x = -7
• x = 7
• x = 12

Tags

CCSS.7.EE.B.4A

Solve:
-4x = 24

• 20
• -20
• 6
• -6

Tags

CCSS.6.EE.B.7

Solve:
3x + 7 = -8

• 5
• -5
• -12
• -18

Tags

CCSS.7.EE.B.4A

Solve:
-4x - 8 = 24

• -4
• 32
• 8
• -8

Tags

CCSS.7.EE.B.4A

Solve for h:
h/4 + 9 = 11

• h = 8
• h = 2
• h = 0.5
• h = -8

Tags

CCSS.7.EE.B.4A

What are we trying to do with the variable?

• Make it look nice
• Isolate it
• Do the opposite
• PEMDAS

Tags

CCSS.7.EE.B.4A

Solve 5x = -45

• 50
• -9
• 15
• -15

Tags

CCSS.6.EE.B.7

Solve 22 = w - 7

• 30
• 15
• 28
• 29

Tags

CCSS.6.EE.B.7