Pre-Algebra Solving Equations

Solve the equation
1/4 + x = 7/8

• 1

• 6/7

• 5/8

• 2/3

Solve the equation
x + 1¹/₂  = 5³/₄

• x = 4 ¹/₄

• x = 4 ⁵/₄

• x = 4 ²/₂

• x = 5

Solve the equation.
54 = s + 34

• s= 10 

• s=20 

• s=34

• s=14

Solve the equation. 
  z- 2⅓= 1⅔

• z= 4

• z= 3

• z= 2⅓

• z= 3⅔

What property states that if you subtract the same number from both sides of an equation, the two sides will remain equal.    For example,  3+4 =  7   
               -4         -4
both sides equal 3!

• Addition property of equality

• Subtraction property of equality

• Multiplication property of equality 

• Commutative Property

What must all equations have in them?

• an addition operation symbol

• a subtraction operation symbol

• an equal sign 

• a coefficient

What property states that you can add the same number to both sides of an equation and the two sides will remain equal.

• distributive property

• addition property of equality

• commutative property

• associative property

Which equation represents the question?

The average length of a King Cobra is 118 inches, which is 22 inches longer than a Black Mamba. What is the average length of a Black Mamba (m)?

• 118 + 22 = m

• m + 22 = 118

• m - 22 = 140

• 118 = 22 - m

d + 3 = 8

• d = 3

• d = 8

• d = 5

• d = 11

4x + 3 = -5

• 1/2

• -1/2

• -2

• 2