Adv and Int AS Ibarra

4( x + 2) = 16

What is the solution to the equation?

• -2

• 0

• 1

• 2

What is the best first step you should take to solve this problem?

1 + 4n - 6n = 1 - 8n

• subtract 8n to both sides

• multiply 6n to both sides

• combine the like terms 4n + -6n

The goal when solving an equation is to....

(choose 2 answers)

• isolate the variable.

• check the solution.

• guess and check.

• Combine Like Terms.

• Get the variable on one side and the contants on the other side of the equal sign.

• x = 19 

• x = 9

• x = 3

• x = -3

What is the first step you should take to solve this problem?

-3(x - 2) = -8 +9x

• add 8 to both sides

• subtract 9x from both sides

• Distribute -3 to the x and -2

• add 2 to both sides

What is the value of x in this problem?

-3(x - 2) = -8 + 9x

The Frederick County Fair costs $15.00 to get in and $2.50 per ride, while the Montgomery County Fair costs $10.00 to get in and $3.00 per ride. Which equations could be used to determine how many rides you would need to go on for both fairs to be of equal value?

• 15x + 2.5 = 10x + 3

• 15 + 2.5x = 10 + 3x

• 15 - 2.5x = 10

• 15 - 10 = 2.5x + 3x

Select the situation that could be modeled by: 120 + 25x = 45x.

• John bought a car radio for $120 and speakers for $25 each. Joe bought a radio for $45. They each paid the same. How much did they spend?
• George charges a flat fee of $120 to mow a lawn plus $25 an hour. Greg charges $45 a hour to mow a lawn. After how many hours do they make the same amount?
• Lisa pays $120 for each purse she buys plus an additional $25 to have them personalized. Lauren pays $45 for each purse she buys. How many purses must they buy for the amount they spent to be the same?

• x = 1

• -3x - 6 = -9

• -3x = -3

• 2x - 6 = 5x - 9