Linear Equation Real World

2x + 1 = 6

What would the first step be in solving this equation?

• Divide by 2

• Subtract 1

• Subtract 6

• Times 2

Solve for x:
7 - 5x = 12

• 1

• -6

• -1

• 6

Solve:
-4x = 24

• 20

• -20

• 6

• -6

Solve:
3(x - 2) = 18

• 6.7

• 4

• 8

• -4

What step would you take to solve this equation?

• Multiply both sides of the equation by 2

• Divide both sides of the equation by 2

• Add 2 to both sides of the equation

• Subtract 2 from both sides of the equation

For a field trip 4 students rode in cars and the rest filled nine buses. How many students were in each bus if 472 students were on the trip?

• 4x=472

• 9x=472

• 4+9x=472

• 4+x=472

Solve for x:
6(2x + 1) = 18

• 3

• 17/12

• 1

• 2

Which equation shows the number of bottles left, y, after x days? A family buys a case of water with 48 bottles and drinks 5 bottles per day.

• y = 48x + 5

• y = -5 + 48x

• y = -5x - 48

• y = 48 - 5x

Paul the plumber charges $25 for a service call. He then charges $100 an hour.  Write a linear equation to model this situation if x represents the number of hours Paul works.

• y = 100x

• y = 25x

• y = 25x + 100

• y = 100x + 25

Your new job is at the Custom T Shop, where T Shirts are printed to order. For each order, Custom T Shop charges $8 per shirt plus a one time set up fee of $15, represented by the equation y = 8x + 15. How much would 50 shirts cost?

• $40

• $400

• $415

• $65

• $390