Equations & Inequalities

Solve for x in the equation above. You may use Algebra tiles to help you. 

• 1
• 3
• 5.67
• 4 = 10

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.7

Solve the Equation:
12.5 -4g = -2g - 3.5

• g = -8
• g = 10
• g = 8
• g = 1.25

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

Simplify each equation. Tell whether the equation has one solution, no solution, or infinitely many solutions.
3x - 8 = 3(x - 4) + 1

• one solution
• no solutions
• infinitely many solutions

Tags

CCSS.8.EE.C.7A

Find the Error
What error did the student make when solving the equation:
1/5x + 6 = 3/5x + 5
1x + 6 = 3x + 5
-2x + 6 = 5
-2x = -1
x = 1/2

• The student found an incorrect common denominator
• The student did not multiply all terms by the common denominator
• The student did not use opposite operations appropriately
• The student did not correctly eliminate the variable from one side of the equation

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

Solve the Equation:
2(6b + 1) = 4(b - 5) -2

• b = - 2.75
• b = -7/8
• b = 3
• b = -3

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

Downloading Music
Chris is comparing two music downloading websites.  The first site charges a $15 membership fee and then charges $0.50 per song.  The second website has no membership fee, but they charge $0.80 per song.
How many songs will Chris have to download before the two sites charge the same amount? 

• 80 songs
• 70 songs
• 50 songs
• 500 songs

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

CCSS.HSA.SSE.A.1

-85 ≥ 5k-5

• -16 ≤ k
• -18 ≤ k
• -16 ≥ k
• -18 ≥ k

Tags

CCSS.7.EE.B.4B

Solve for x:

• x = 20
• x = 7
• x = 10
• x = 3

Tags

CCSS.6.EE.B.7

Solve the equation
6b = 30

• x = 36
• x = 24
• x = 180
• x = 5

Tags

CCSS.6.EE.B.7

What value for n makes the following sentence true?

2(n + 3) = 5

• 1

• 10

• 5.5

• -0.5

Tags

CCSS.6.EE.B.5