Basic Functions Algebra

Is 13 a solution for r - 9 = 4

• Yes

• No

When a number and a variable are stuck together with no symbols, you should ____________.

• add them

• subtract them

• multiply them

• put them into a salad

If j = 4, what is 8j?

• 84

• 12

• 2

• 32

18 + f = 30

f = ?

• 12

• 10

• 48

• 22

g - 14 = 50

• 36

• 64

• 74

• 26

Solve for x.

• x = 21

• x = 17

• x = 20

• x = 18

Edward's pizza had 23 pepperonis. Then he picked off n pepperonis. Now there are 12 pepperonis left. What algebraic equation shows this situation?

• 12n = 23

• n + 23 = 12

• 23 + 12 = n

• 23 - n = 12

Julius has v gold coins. After some time, he doubled his amount of gold coins. Which algebraic expression shows how many gold coins Julius has?

• 2v

• 2 + v

• 2 - v

• 2 / v

r + 16 = 5r

What is the value of r?

• 2

• 4

• 6

• 8

Given the expression 2y + 4, what will be the value if y = 3

• 7

• 8

• 9

• 10