• 2
• 1.2
• 12
• -2

• c = 3
• c = 6
• c = 7
• c = 18

• 1
• 7
• 4
• 3

WRITE AN EQUATION
You bought a $5 magazine and four
erasers. You spent a total of $25. How
much did each eraser cost? (a)  

• 5+x=25
• 5+4x=25
• 5x=25
• 23-5=4x

Mathematical Equivalence

ON

What does isolate the variable mean?

• Make sure the variable is not alone.
• Get the variable by itself.
• Make the variable do a dance.
• Double the variable

Tags

CCSS.6.EE.B.7

Identify the steps to solve for b

• Add 6 to both sides and divide both sides by 5

• Add 6 to both sides and multiply both sides by 5

• Subtract 6 from both sides then multiply both sides by 5

• Subtract 6 from both sides then divide both sides by 5

Tags

CCSS.HSA.REI.A.1

Tags

CCSS.7.EE.B.4A

Tags

CCSS.7.EE.B.4A

Scott works on cars. He charges $35 for each car plus $7 per hour. Write an equation that represents this scenario if Kylie's car bill was $63.

• 7x + 35 = 63
• 7x = 63
• 7x - 35 = 63
• 35x + 7 = 63

Tags

CCSS.HSA.CED.A.3