Grade 7 Unit 4 Lesson 4 Quiz

What is the first step in solving the equation 3x + 5 = 20 using the balance method?

• Divide both sides by 3

• Multiply both sides by 3

• Subtract 5 from both sides

• Add 5 to both sides

When solving 3(x + 2) = 12, what is one method to simplify the equation?

• Divide both sides by 2

• Distribute the 3 across the terms

• Subtract 2 from both sides

• Add 2 to both sides

In a hexagonal enclosure problem, if the perimeter is 137 feet, what equation represents the sum of the sides?

• 2n + 137 = 57

• n + 137 = 57

• n + 57 = 137

• 2n + 57 = 137

What is the result of distributing 12 in the equation 12(x - 2) = 72?

• 12x - 2 = 72

• 12x + 2 = 72

• 12x + 24 = 72

• 12x - 24 = 72

How can you verify the solution to an equation after solving it?

• By solving a different equation

• By asking a friend

• By checking the solution in the original equation

• By guessing the answer

What is the solution to the equation 12x = 96?

• x = 6

• x = 8

• x = 10

• x = 12

What is the reciprocal of -1/3 used for in solving equations?

• To add to both sides

• To subtract from both sides

• To multiply both sides

• To divide both sides

In the equation -1/3x + 4 = -2, what is the first step to isolate x?

• Subtract 4 from both sides

• Add 4 to both sides

• Divide by -3

• Multiply by -3

How do you handle a negative coefficient in an equation like -2P = 7.4?

• Subtract 2 from both sides

• Divide by -2

• Add 2 to both sides

• Multiply by -2

What is the final step in solving the equation 5.6 - 2P = 13?

• Divide by -2

• Subtract 5.6 from both sides

• Add 5.6 to both sides

• Multiply by 2