1.
At the Ringgold County Fair and Carnival, it
costs $15 to get into the fairgrounds. It costs
extra to ride the premium rides. Julia rode 8
premium rides. After day was over, Julia had
spent a total of $27. What was the cost of
each premium ride.
Write an algebraic equation.
You do not need to solve…
2.
At the Ringgold County Fair and Carnival, it
costs $15 to get into the fairgrounds. It costs
extra to ride the premium rides. Julia rode 8
premium rides. After day was over, Julia had
spent a total of $27. What was the cost of
each premium ride.
Write an algebraic equation.
◦ 8x + 15 = 27
You do not need to solve…
5.
8x + 15 = 27
- 15 = - 15
8x = 12
Goal: Isolate the
variable
Question: How
can I get the
variable by itself?
8x = 12
8
8
x = 1.5
What does that mean for the context of our
problem?
6. Goal: Isolate the variable
Subtract 15
x
x
x
x
x
x
x
x
x
x
x
27
x
x
x
x
x
12
15
7. ◦ 1) Combine like terms
◦ 2) Undo addition or subtraction
◦ 3) Undo multiplication or division
Like terms: 3x + 5 + x + 5 = 22