2-1 Solve Equations Part One

What is the main goal when solving an algebraic equation?

• To make both sides of the equation look identical.

• To isolate the unknown value on one side of the equal sign.

• To use only addition and subtraction operations.

• To find the sum of all numbers in the equation.

What is an equation compared to in the video to explain its nature?

• A measuring tape.

• A balance scale.

• A calculator.

• A ruler.

What must be done to an equation to keep it true when making a change to one side?

• The opposite operation must be applied to the other side.

• The same change must be applied to both sides.

• Only addition or subtraction can be used.

• The equation must be simplified before making any changes.

What operation should be performed to solve the equation X - 5 = 16 for X?

• Subtract 5 from both sides.

• Add 5 to both sides.

• Multiply both sides by 5.

• Divide both sides by 5.

To solve the equation 12 - X = 5 for X, what is an effective first step to avoid a negative unknown?

• Subtract 12 from both sides.

• Add 5 to both sides.

• Add X to both sides.

• Subtract X from both sides.