One Variable Equations and Expressions

Jonah's team collects x cans for the recycling drive. Margaret's team collects 5 times as many cans as Jonah's team. Margaret's team collects 605 cans. Enter an equation that represents the total number of cans Margaret's team collected.

Mathematical Equivalence

ON

Jonah's team collects x cans for the recycling drive. Margaret's team collects 5 times as many cans as Jonah's team. Margaret's team collects 605 cans. Enter the number of cans represented by x in this situation.

Mathematical Equivalence

ON

"The product of 7 and y is 35."

Enter the equation that represents the description.

Mathematical Equivalence

ON

Solve for b
2b = -16

• 8

• 4

• -8

• 3

x = 20

x = 7

x = 10

x = 3

• x = 20

• x = 7

• x = 10

• x = 3

r + 20 = 27

• r = 7

• r = 47

• r = 13

• r = 20

In the equation
x + 7 = 12
7 is being added to the variable, x. How should you show your work to isolate the variable and solve the equation? 

• Subtract 7 from both sides. The solution is x = 5.

• Add 7 to both sides.
  The solution is x = 19.

• Multiply both sides by 7 The solution is x = 84.

What would be the best first step to solving the equation in one step?

• multiply both sides by ³/₂ 

• divide both sides by 3

• multiply both sides by 3

• subtract ²/₃  from both sides

What would be the best first step to solving the equation?

• multiply both sides by 3

• multiply both sides by 4

• divide both sides by 3

• divide both sides by 4

What is the solution for x + 9 = 21

• 10

• 12

• 11

• 13