Equations and Expressions Retest

-4x + 1 = 21

What is the value of x?

• x = 120

• x = 5

• x = 30

• x = -5

Tags

CCSS.7.EE.B.4A

Solve: 3x = 15 - 2x

• x = 9

• x = 3

• x = -3

• x = 6

At Gamestop you can buy a Xbox One for $150.00 and each game to go with it would cost $24.00. Or, you can buy a Playstation 4 for $180.00 and each game for $20.00. Write an equation to determine how many games would need to be purchased for the cost to be equal? 

• 150x + 24 = 180 + 20x
• 150 + 24x = 180 + 20x
• 180 - 150 = 24 x + 20x
• 150 - 24x = 180 - 20x

Which inequality can be represented by the inequality 20x + 50 < 25x

• Greg has $50 in his savings account. He deposits $20 in the account each week. His sister, Lauren opened an account today and will deposit $25 in the account each week. How many weeks will it take for Greg to have more money saved than Lauren?

• Greg has $50 in his savings account. He deposits $20 in the account each week. His sister, Lauren opened an account today and will put $25 in the account each week. How many weeks will it take for Lauren to have more money saved than Greg?

• Greg saves $20 each week to put in his savings account at the bank. His sister, Lauren has saved $50 and will save $25 each week. How many weeks will it take for Greg to have more money than Lauren?

• Greg has saved $50 and plans to put $25 each week in his savings account at the bank. His sister, Lauren has also saved $50 but will put $20 in her bank account each week.

Tags

CCSS.7.EE.B.4B

7x - 11 = 5x + 25

What is x? Enter ONLY the number.

Write the equation for the model.

• 3x - 7x = 2x + 5x

• 3x + 5 = 2x - 7

• 3x - 7 = 2x + 5

Tags

CCSS.HSA.CED.A.3

Write the equation for the model....

Now solve for x! Enter ONLY the number below.

Tags

CCSS.7.EE.B.4A