Solving Equations

What is the first step taken to solve the equation?

• Multiply both sides by 2

• Subtract 2x from both sides

• Divide both sides by x

• Add 2 to both sides

What does the equation simplify to after subtracting 2x from both sides?

• 3 = 3x - 2

• 3 = 5x - 2

• 5 = 3x - 2

• 5 = 5x - 2

What operation is performed to eliminate the negative term from the equation?

• Division by 2

• Multiplication by -1

• Addition of 2

• Subtraction of 1

What is the equation simplified to after adding 2 to both sides?

• 5 = 3x

• 3 = 3x

• 3 = 5x

• 5 = 5x

How is x isolated completely in the final steps?

• By dividing both sides by 3

• By subtracting 5 from both sides

• By adding 3 to both sides

• By multiplying both sides by 3

What is the final value of x expressed as a fraction?

• 3/5

• 2/3

• 1/2

• 5/3

How is the final value of x expressed as a mixed number?

• 2 1/3

• 1 2/3

• 1 3/4

• 1 1/2

What method is used to verify the solution?

• Asking a peer

• Graphing the equation

• Substituting x back into the original equation

• Consulting a textbook

Solve for x.

Mathematical Equivalence

OFF

• add 15
• divide by 4
• x=5
• subtract 15
• divide 15
• subtract 5
• subtract 4
• multiply 4
• x=20
• x=4