Equations

Solve the equation:
3x - x + 2 = 4(2x - 1)

• infinite solutions

• x = 1

• x = -1

• no solution

Solve: -11 = n - 6

• 17 = n

• -17 = n

• 5 = n

• -5 = n

Solve:
7x = 3x + 24

• 6

• 10

• 14

• 4

Solve:
10x + 9 = 4x - 9

• 0

• 3

• -3

• -18

Choose the phrase that best completes the following statement:

When solving an equation, what ever is done to one side of the equal sign...

• must be mathematical.

• must also be done to the other side of the equal sign.

• is good enough.

• should be done with a smile and twice on Tuesday.

Which property says that you can multiply both sides of any equation by the same number?

• Addition Property of Equality

• Subtraction Property of Equality

• Multiplication Property of Equality

• Division Property of Equality

Which property says that you can add the same number to both sides of any equation?

• Addition Property of Equality

• Subtraction Property of Equality

• Multiplication Property of Equality

• Commutative Property of Equality

A property that states that if you add the same number to both sides of an equation, the two sides will remain equal

• Addition Property of Equality

• Inequality

• Solution of an Equation

• Subtraction Property of Equality

Complete the saying: whatever you do to one side of the equation you must...

• do the same to the other side

• do the opposite to the other

Which property justifies the second step?
          2 - 7 = 3x + 7 - 7
          2 - 7 = 3x + 0

• Addition Property of Equality

• Opposite Property of Mathematics

• Inverse Property of Addition

• Identity Property of Addition