Solving One Step Equations Word Problems

Select the equation that best represents the situation: Mrs. Lamb is baking a cake. The recipe calls for nine cups of flour. She already put in two cups.

• r + 2 = 9

• 2r = 9

Charlie has some candy. He shares ten pieces with Betsy and is left with 24 pieces. Which equation should I use to solve this problem?

• x +10 = 24

• x - 10 = 24

• 10x = 24

• x + 24 = 10

Solve for x
17 = x + 3

• x = 20

• x = 14

• x = 13

• x = 19

x - 4 = 17

• x = 21

• x = 13

• x = 19

• x = 24

x + 24 = 44

• x = -20

• x = 68

• x = 20

• x = -68

To solve the equation
x + 5 = 8
 I would ....

• subtract 5 from x

• subtract 5 from both sides

• subtract 5 from one side and add 5 to the other

• add 5 to both sides

in 3a =12,
I would....

• add 3 to both sides

• subtract 3 from both sides

• divide both sides by 3

• divide just the right by 3

Solve the equation
3x = 27. 

• x = 24

• x = 81

• x = 9

Carol’s class had 25 students on roll. After some new students join her class, the number of students increases to 36. Write an equation to determine the number of students who joined Carol's class.

• 25 + x = 36

• x – 36 = 25

• 36x = 25

• 36 + x = –25

Which choice models this situation? Marcus needs to sell 25 tickets to a fundraiser by Friday. So far, he has sold 9 tickets. How many tickets does he still need to sell?

• t - 9 = 25

• t + 9 = 25

• 9t = 25

• t/9 = 25