One Variable, Two Step Equations

x - 8 = -5 

• 13

• -13

• 3

• -3

An electrician charges $90 per hour plus a $50 travelling fee. Which equation represents the total cost of $340 for a repair by an electrician after x hours?

• 340 = 50 - 90x

• 340 = 90x + 50

• 340 = -50x + 90

• 340 = -90 - 50x

Penelope is going to the carnival to ride the rides. It costs $20 to get into the carnival and ride tickets are $0.50 each. Write an equation that represents this scenario if she spends $35 in all.

• .50x + 20 = 35

• .50x = 35

• .50 + 20x = 35 

• .50x - 20 = 35

Jim paid a gym membership fee of $50, plus $20 per month. Jim has paid a total of $290 to the gym. Which equation matches this situation?

• 50 + 20m = 290

• 20 + 50m = 290

• 50 + 20 = m

• 50m - 20 = 290

Zorna weighs 92 pounds. Her weight is 6 pounds more than half of her father's weight. Which equation would help me find out how much her father weighs?

• 6x + 2 = 92

• x + 6 = 92

• 2x + 6 = 92

• x/2 + 6 = 92

The taxi charges $10 to ride and $.25 per mile. If Brenda spent $14.75, how many miles did you travel?

• 10 + 25x = 14.75

• 10 + .25x = 14.75

• 10 + .25 = 14.75

• 10x + .25 = 14.75

A banana has 85 calories. This is 10 calories less than one eighth of the calories in a banana split. Which equations helps you find how many calories are in a banana split?

• 85 - 10 = x

• x/8 + 10 = 85

• x/8 - 10 = 85

• x/8 - 10 = 75

Solve for y:
x + 2y = −8  

• y = − 1 /2 x − 4

• y = − 2 x − 4

• y = 1 /2 x − 4

• y = − 1 /2 x +4

Solve for k:
3k + 5 = 23

• k = 4

• k = 5

• k = 6

• k = 7

  x / 2  - 5 = 3

• x = -2

• x = 2

• x = 16

• x = 8