Solving Algebra I Equations

Solve the equation below. Enter your answer using set notation {}.

Ms. Wagner is buying lobster tails and steaks for a dinner party. When she gets to the store, she sees that each lobster tail is $5.50 more than each steak. She ends up buy 9 lobster tails and 12 steaks and spends a total of $319.35. What is the combined cost of one lobster tail and one steak? Enter only a number, no dollar sign needed.

2x - 3 + 4x = 27

• 12

• 4

• 5

• 15

-(n - 8) = -2

• 6

• 10

• -10

• -6

Solve the equation:
^x/₃+ 10 = 15

• 75

• 15

• 25

• 5

Solve the equation:
3(x - 1) = 2x + 9

• x = 12

• no solution

• x = 10

• x = 6

Solve the equation:
3x - x + 2 = 4(2x - 1)

• infinite solutions

• x = 1

• x = -1

• no solution

Solve the equation:
2x - 1 = ¾x + 9

• x = -10

• x = 8

• x = -37

• x = 6