Expressions and Equations with Rational Numbers

Simplify the expression

3(2 + x) + 6x - 4

• 6x + 5

• 9x + 1

• 9x + 2

• 3x + 8

Tags

CCSS.6.EE.A.3

Simplify the Expression. 
9z  - 21 - 3z + 10

• Simplified

• 9z - 21 - 7

• 9z - 11 -3z

• 6z - 11

Tags

CCSS.7.EE.A.1

Simplify:

2.5(-1.2x + 3)

• -3x + 7.5

• 3x - 7

• -3.7x + 5.5

• 3.7x - 2.8

Tags

CCSS.6.EE.A.3

Simplify the expression

-5x + ¾(8x - 12)

• x - 12

• x - 9

• -11x - 9

• -5x - 15

Tags

CCSS.6.EE.A.3

• 2

• 7

• 3

• 0

• -2

• 2

• 7

• 3

• 0

• -2

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

Penelope is going to the carnival to ride the rides. It costs $20 to get into the carnival and ride tickets are $0.50 each. Write an equation that represents this scenario if she spends $35 in all.

• .50x + 20 = 35

• .50x = 35

• .50 + 20x = 35 

• .50x - 20 = 35

Tags

CCSS.HSA.CED.A.3

Which equation would describe "two times a number plus five equals 15"?

• x + 5 = 15

• 2x + 5=15

• x + 2(5) = 15

• 2(x + 5) = 15

-3a + 8 = 14

• a= -2

• a= -7.5

• a= 2

• a= 6

Tags

CCSS.7.EE.B.4A