Equations and Expressions

Solve for x:

• x = 20

• x = 7

• x = 10

• x = 3

Solve for x. 
14.35 = 4.1 + x

• x = 10.25

• x = 18.45

• x = 4

• x = 58.83

Solve for q.
2q = 18.4

• q = 6.4

• q = 2.181818...

• q = 9.2

• q = 36.8

Solve for m. 
m - 25.4 = 105

• 130.4

• 79.6

• 131

• 80

• A
• B
• C
• D

Which equation matches the table?

• y = x + 5

• y = 5x

• y = x - 5

• x = y - 5

Translate the phrase into an algebraic expression: "Seven less than twice a number."

Translate the following sentence into an equation: "Eight times a number, decreased by 13, is equal to 35."

• 15

• 12

• 18

• 21

The table shows Sandra's weekly earnings, y , based on the number of hours she works. Which equation can Sandra use to calculate her weekly earnings when she works x hours?

​ (a)  

• y = 8x

• y = 5x + 40

• y = 10x

• y = 10x + 80