Understanding Equations and Operations

What is the main difference between an expression and an equation?

• An expression always has an equal sign.

• An equation is a type of expression.

• An expression can only contain numbers.

• An equation consists of two expressions separated by an equal sign.

Which method involves substituting different numbers to find a solution to an equation?

• Inverse operation method

• Trial and error method

• Balancing method

• Graphical method

What analogy is used to explain the concept of balancing equations?

• A seesaw

• A balancing scale

• A pendulum

• A lever

What happens if you subtract a number from one side of an equation?

• You must add the same number to the other side.

• The equation remains unchanged.

• The equation becomes invalid.

• You must subtract the same number from the other side.

What is the inverse operation of addition?

• Subtraction

• Exponentiation

• Division

• Multiplication

How do you isolate a variable that is being multiplied by a number?

• Multiply both sides by the number

• Divide both sides by the number

• Subtract the number from both sides

• Add the number to both sides

In the equation 3K = 12, what operation would you perform to solve for K?

• Divide both sides by 3

• Multiply both sides by 3

• Add 3 to both sides

• Subtract 3 from both sides

If a variable is being divided by a number, what operation should be used to isolate it?

• Divide both sides by the number

• Add the number to both sides

• Subtract the number from both sides

• Multiply both sides by the number

What is the result of performing the same operation on both sides of an equation?

• The equation becomes unbalanced

• The equation remains balanced

• The equation becomes invalid

• The equation is solved

What will the next lesson focus on after learning about single-step equations?

• Multi-step equations

• Graphing equations

• Inequalities

• Quadratic equations