Creating One Step Equations

A number divided by 18 is -3

• v / 18 = -3

• v / 18 = 3

• v / 3 = -18

• 3v = -18

A number decreased by 40 is 60

• b + 40 = 60

• b - 60 = 40

• b - 40 = 60

• 40 - b = 60

f + 12.55 = 28.94

• f = 11.76

• f = 16.43

• f = -15.89

• f = 41.49

9.8x = 980

• x = 98

• x = 90

• x = 100

• x = 108

The variable, k, is being divided by 11. How should you show your work to isolate the variable?

• Divide both sides by 11

• Multiply both sides by 11.

• Add 11 to both sides.

• Subtract 11 to both sides.

A family had $70 to spend at a carnival for tickets. Adult tickets were $18 each. Student tickets were $13 each. They bought several adult tickets and one student ticket. Write an equation for how many adult tickets were bought.

• 5x + 13 = 70

• 18x + 13 = 70

• 13x + 18 = 70

• 5x + 18 = 70

Dakota made $88 at work today and she earns $11 per hour. Write an equation that represents how many hours Dakota worked today.

• 20x - 8 = 88

• 8x = 88

• 11x = 88

• 8x + 12 = 88

Mike earns $10 an hour and sometimes receives additional money in tips. Today Mike earned $95 by working for several hours and also earning $12 in tips. Write an equation to represent how many hours Mike worked.

• 12x + 10 = 95

• 10x + 12 = 95

• 10x - 12 = 95

• 12x - 10 = 95

John works at a barbershop. In one day of work he will earn $10 per haircut. On each day of work he must pay a $20 chair rental fee to the owner of the barber shop. John made $435 in 3 days. Write an equation to represent how many haircuts John cut in the 3 days.

• 10x + 60 = 435

• 20x - 60 = 435

• 10x - 60 = 435

• 10x - 20 = 435

Adult tickets were $12 each. Student tickets were $9 each. We bought several adult tickets and one student ticket for $56. Write an equation to represent how many adult tickets were bought.

• 12x - 9 = 56

• 9x + 12 = 56

• 12x + 9 = 56

• 9x - 12 = 56