One Step Equations Using Addition or Subtraction

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. 
  z- 2⅓= 1⅔

• z= 4

• z= 3

• z= 2⅓

• z= 3⅔

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

Solve the equation.
19 = p + 5

• 14

• p = 24

• p = 14

• p = -14

Summarize how you solve the equation below.

• Subtract 12 from both sides of the equation. (take 12 from the 12 +x side and take 12 away from 50)

• Subtract 12 from the right side of the equation. (just take 12 away from the 12 + x side)

• Subtract 50 from both sides of the equation. (take 50 away from the 12 +x side and 50 away from 50)

• Combine 50 and 12

Solve the equation.
46 = n + 19

• n = 37

• n = 27

• n = 65

• n = 30

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

t - 1.9= 15.7

• t= 12

• t= 13.8

• t= 17.6

• 15

Solve the equation
21 = b - 6

• b = 27

• b = 15

Solve the equation
y - 4.1 = 5.4

• y = 9.5

• y = 5.9

• y = 4.1

• y = 5.4