Write an Equation from Word Problems

Five less than twice a number is equivalent to 47. 

• 5 - 2x = 47 

• 2x - 5 = 47 

• 5x - 2 = 47 

• 2 - 5x = 47 

Justin is purchasing a new iPhone.  The sales clerk says that if he pays $100 now his monthly payments will be $25 and his total cost will be $600.  Which equation can be used to determine how many months Justin will be paying for his phone? 

• 25x + 100 = 600

• 25x - 100 = 600 

• 600 - 100x = 25

• 600 + 25x = 100 

Three times the sum of a number and 7 is equivalent to 57. 

• 3x + 7 = 57 

• 3(x + 7) = 57

• 7x + 3 = 57 

• 7(x + 3) = 57

Twice the difference of a number and 16 is equivalent to 28. 

• 2x + 16 = 28

• 2x - 16 = 28 

• 2(x + 16) = 28 

• 2(x - 16) = 28

• A
• B
• C
• D

What is the equation for the word problem?

• 6x + 3.20 = 18.20

• 3.20 + 18.20 = 6x

• 6x + 18.20 = 3.20

• A

• B

• C

• D

A toy company spends $1500 per day for factory expenses plus $8 to make each teddy bear.  They spent $12,000 one day.  Which equation could be used to find the number of bears t the company has made that day?

• 1500 + 8t = 12000

• 12000 + 8t = 1500

• 1500 - 8t = 12000

• 8t - 12000 = 1500

Write an equation to represent this word problem.

• 40 - 2f = 8

• 40 + 2f = 8

• 8 - 2f = 40

• 40 = 2f - 8

Write an equation to represent this word problem.

• 5 + 4e = 25

• 5 = 4e + 25

• 5 + 4 + 25

• 4 - 4e = 25