Creating Equations Post-Assessment

Create an equation for the given problem: the difference of a number and 5 is 28.

• x+5=28

• 5x=28

• 28-x=5

• x-5=28

Create an equation for the given problem:

The product of a number and 11 is 132

• 11/x = 132

• 11x=132

• 132-x=11

• x/11 = 132

Create an Equation for the given problem:

The sum of 10 and 7 times a number is equal to 73

• 10x+7=73

• 73-10x=7

• 10+7x=73

Create an Equation for the following problem:

The difference of 23 and the product of 14 and a number is 225

• 225x-14=23

• 225+23x=14

• 14x-23=225

• 23-14x=225

Create an Equation for the following problem:

The product of 7 and the difference between a number and 3 is 35

• 7x-3=35

• 3x-7=35

• 3(x-7)=35

• 7(x-3)=35

Create an equation using x as the variable and solve for how long the plumber was at the house for.

"When the plumber comes to my house to fix the leaky faucet, he charges a flat rate of $50 in addition to charging $22 per hour. If the final bill was $116, how long was the plumber at my house?"

• 50x-116=22

  x=4

• 22x+50=116

  x=2

• 50+22x=116

  x=3

• 50x+22=116

  x=3

Create and equation and solve for the number of minutes that Amy used this month.

"For Amy’s cellular phone service, she pays $32 per month plus $0.75 for each minute. Amy received a bill for $47 last month. How many minutes did Amy use?"

• 0.75x+32=47

  x=20 minutes

• 32x-0.75=47

  x=25 minutes

• 32x+0.75=47

  x=15 minutes

• 47x-32=0.75

  x=20 minutes