Model and Solve Equations

What is the solution?

• x = -2

• x = - 2

• x = 15

• x = -15

Which of the following is correct?

• 2x + 9 = 15

• 2x + 15 = 9

• 3x + 9 = 15

• -3x + 9 = 15

What is the solution?

• x = -3

• x = 2

• x = -2

• x = 3

Solve for the missing variable:

• x = -7

• x = 7

• x = 21

• x = 14

Solve for the missing variable:

• 21

• 61

• - 20

• 24

Solve for the missing variable:

• f = 19

• f = 31

• f = 12

• f = 50

Solve for the missing variable:

• y = 7

• y = 6

• y = 1/6

• y = 8

Solve for the missing variable:

• m = 5

• m = 1/5

• m = 25

• m = 55

Solve for the missing variable:

• x = 6

• x = 12

• x = 1/2

• x = 1/6

Solve for the missing variable:

• r = 6

• r = 36

• r = 54

• r = 9