Writing and Solving Equations

Speedy Boat Rental charges a $15 deposit fee plus $2 for each hour of use to rent a paddle boat.  Write an equation to find out how many hours, h, they rented the Boat if the total cost was $33.

• h = 2(9) + 15

• 33 = 15h + 2

• h = 15(9) + 2

• 33 = 2h + 15

Ken is thinking of a number. Nine more than the product of 4 and the number is 73. What is the equation?

• 4 + 9x = 73

• 4x = 73

• 4x + 9 = 73

• 9x + 4 = 73

Pizzazz Publications is having some books printed. The printer charges $800 plus $5 per book. What equation could help me find how many books can be printed for $4,000?

• 800 + 5x = 4000

• 800x + 5 = 4000

• 4000 + 5x= 800

• 800 + 5 = 4000

Zorna weighs 92 pounds. Her weight is 6 pounds more than half of her father's weight. Which equation would help me find out how much her father weighs?

• 6x + 2 = 92

• x + 6 = 92

• 2x + 6 = 92

• x/2 + 6 = 92

Solve: 3(x-4) = -3

• 3

• -3

• 5

• -5

4 + k/2 = -3

• 14

• -14

• 4

• -2

2w + 3( w + 4) = 27 Solve

• 3

• -3

• 5

• -5

x/3 + 5 = 10

• 9

• 12

• 13

• 15

Choose the first step in solving the following equation.
-3y - 12 = 14

• add 3 from both sides

• add 12 to both sides

• subtract 12 from both sides

Solve:
19  +  a  =  –40

• –950

• –59

• –31

• 2.6