Equations and Translations

5 less than a number is 15.

• x - 5 = 15
• 5 - x = 15
• 15 - x = 5

Two more than 4 times a number is -18.

• 4x + 2 = -18
• 2x + 4 = -18
• 18 = 4x +2

Tags

CCSS.7.EE.B.4A

Twice a number is 24.

• 2n = 24
• 2/n = 24
• 2 + n = 24
• 2 - n = 24

Twice the sum of a number and 5 is 22.
What is the number

• 3
• 4
• 5
• 6

Tags

CCSS.7.EE.B.4A

The sum of a number and 8 is 12.
What is the number?

• 2
• 3
• 4
• 5

Tags

CCSS.6.EE.B.7

What is the difference between an expression and equation?

• Expressions have an equal sign and equations do not have an equal sign
• Expressions do not have an equal sign and equations do have an equal sign
• There is not a difference
• Expressions do not have variables and equations have variables

What does "difference" mean?

• add
• subtract 
• multiply
• divide

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

Translate: two times the sum of a number and five 

• 2 + y + 5
• 2y + 5 
• 2(y + 5)
• 2 - y + 5

Tags

CCSS.6.EE.A.2A

What is the solution of r - 11 = 5

• 11

• 14

• 15

• 16

Tags

CCSS.6.EE.B.7

What is the solution of 9 + k = 18

• 18

• 9

• 8

• 7

Tags

CCSS.6.EE.B.7