Review 2.1-2.3

Two more than 4 times a number is -18.

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

Tags

CCSS.HSA.CED.A.3

5 less than a number is 15.

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

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

Twice a number is 24.

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

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

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

Tags

CCSS.6.EE.A.2B

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

A number tripled subtracted from 60 is the same as 21.

• 3c − 60 = 21
• 60 − 3 = 21c
• 60 − 3c = 21
• c(60 − 3) = 21

Tags

CCSS.HSA.CED.A.3

What is the solution of 9 + k = 18

• 18

• 9

• 8

• 7

Tags

CCSS.6.EE.B.7

What is the solution of 3w = 30

• 6

• 9

• 10

• 12

Tags

CCSS.6.EE.B.7

-3a + 8 = 14

• a= -2
• a= -7.5
• a= 2
• a= 6

Tags

CCSS.7.EE.B.4A

33 = 4a - 7

• a=-10
• a=10
• a=4.5

Tags

CCSS.7.EE.B.4A