Numerical and Algebraic Equations

3x + 4 = 13

• Expression

• Equation

Which of these can be written as an equation?

• 3.2 times w plus 18

• Half of 26 minus b is 81

• Product of 12 and n is more than 21

• 6 times x minus 2.5

Jim paid a gym membership fee of $50, plus $20 per month. Jim has paid a total of $290 to the gym. How many months has Jim been a member of the gym?

• 50 + 20m = 290

• 20 + 50m = 290

• 50 + 20 = m

• 50m - 20 = 290

The space club is having some posters printed. The printer charges $250 plus $2 per poster. How can I figure out how many posters I could print for $1,000?

• 250x + 2 = 1000

• 1000 + 2x = 250

• 250 - 2x = 1000

• 2x + 250 = 1000

While at the music store, Drew bought 5 CDs, all at the same price. The tax on his purchase was $6, and the total was $61. What was the price of each CD?

• 5x + 6 = 61

• x/5 + 6 = 61

• 5/x + 6 = 61

• x + 5 + 6 = 61

Scott works on cars. He charges $35 for each car plus $7 per hour. Write an equation that represents this scenario if Kylie's car bill was $63.

• 7x + 35 = 63

• 7x = 63

• 7x + 63 = 35

• 35x + 7 = 63

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

12a - 8

• verbal

• numerical

• algebraic

Which operation would you do first in the following equation?
10 - 4 ÷ 1 · 5

• Subtraction

• Division

• Multiplication

• Addition 

Evaluate the equation:
(10+5) -6

• 9

• 10

• 11

• 12