Foundations Expressions/Equations Review

33 = 4a - 7

• a=-10
• a=10
• a=4.5

6 - 3a = 21

• a= 9
• a= -9
• a= -5
• a= 5

-3a + 8 = 14

• a= -2
• a= -7.5
• a= 2
• a= 6

3 + (¹∕₄)a = 31

• a= 28
• a= 112
• a= 7
• a= 67

7 + ^a⁄₃ = 5

• a= -2
• a= -6
• a= 3
• a= 15

x - 62 = 123
How should you show your work to isolate the variable and solve the equation?

• Add 62 to each side. 
• Subtract 62 from each side.
• Multiply each side by 62.
• Add 123 to each side.

10x = 90

• x = 80
• x = 100
• x = 10
• x = 9

Solve for x:

• x = 20
• x = 7
• x = 10
• x = 3

Evaluate 2a + 4b 
if a = 10     and    b = 6

• 20
• 24
• 44
• 4

Tags

CCSS.6.EE.A.2C

Evaluate 8a - b     if a = 10   and   b = 6

• 74
• 38
• 1000
• 9000

Tags

CCSS.6.EE.A.2C