Expressions and Their Solutions

Determine whether the given value is a solution.
96 / x = 8  if x = 12

• yes

• no

Determine whether the given value is a solution.
k + 18 = 63, if k = 44

• yes

• no

Determine whether the given value is a solution.
35 / s = 7, if s = 5

• yes

• no

Determine whether the given value is a solution.
a - 6 = 36, if a = 42

• yes

• no

5(10-a) use a=6

• 50

• 4

• 20

• 1

4n + 9n use n = 3

• 39

• 12

• 21

• 31

Evaluate when a = 15:
2(a - 5) + 2

• 22

• 27

• 14

• 7

z + 6z use z=4

• 40

• 10

• 28

• 9

Choose the algebraic expression that matches the verbal phrase.

• A) x + y

• B) x - y

• C) x * y

• D) x / y

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