Equations Checkpoint Review

Front

What is the equation for the total cost of renting a car from Easy Car Rental?

Back

y = 8.5x + 25.5, where y is the total cost, x is the number of hours rented.

Front

What is the first step to solve the equation 4 + k/2 = -3?

Back

Isolate the variable k by subtracting 4 from both sides.

Front

What is the solution to the equation 5 = 7s - 9?

Back

s = 2.

Front

How do you solve the equation x/2 = -10?

Back

Multiply both sides by 2 to get x = -20.

Front

What is the objective when solving an equation?

Back

To isolate the variable.

Front

What does it mean to isolate a variable in an equation?

Back

To get the variable alone on one side of the equation.

Front

What is the solution to the equation k/2 = -3?

Back

k = -6.

Front

If 3x + 5 = 20, what is the value of x?

Back

x = 5.

Front

What is the first step to solve the equation 2x - 4 = 10?

Back

Add 4 to both sides to get 2x = 14.

Front

What is the solution to the equation 6 = 2y + 4?

Back

y = 1.