One Step Equations

One Step Equations

Expression

-Mathematical phrase with a combination of numbers, variables, and operations

-Does not have an equals sign

Multiple Choice

An expression has an equals sign.

• True

• False

Equation

-A mathematical sentence stating two expressions are equivalent

-Has an equals sign

Multiple Choice

Which of the following has an equals sign?

• Equation

• Expression

Solving Equations

-Use inverse operations to isolate the variable

-Keep the equation balanced by performing the same operation on both sides of the equals sign

Multiple Select

Inverse means

• The Same

• Addition

• Subtraction

• The Opposite

Multiple Choice

Which of the following inverse operations is incorrect?

• inverse of addition is subtraction

• inverse of multiplication is division

• inverse of division is squaring

• inverse of multiplication is division

3 = z + 6

• subtract 6 from both sides

• z = -3

r - ( -2 ) = -15

• rewrite as addition

• r + 2 = -15

• subtract 2 from both sides

• r = -17

Multiple Choice

How do we solve f - 12 = -4

• add 4 to both sides

• add 12 to both sides

• add -12 to both sides

• subtract 12 from both sides

x + 6 = 4

-5 = b + 8

x - 2 = 1

r - 4 = -2

Multiple Choice

y + 6 = 9

• 15

• -3

• -15

• 3

Multiple Choice

x + 3 = 1

• -2

• -4

• 2

• 4

Multiple Choice

y - 3 = 4

• -1

• 7

• 1

• -7

Multiple Choice

q - 8 = -9

• 17

• 1

• -17

• -1

Word Problem

AS pair of shoes cost $25. This is $14 less than the cost of a pair of jeans. Find the cost of the jeans.

Word Problem

The average lifespan of a tiger is 17 years. this is 3 years less than the lifespan of a lion. Write and solve an equation to find the average lifespan of a lion.

Multiple Choice

Vivian practiced the piano for 32 minutes. She practiced 11 minutes less than her brother did. Write and solve an equation to determine how long her brother practiced the piano.

• 11 = b + 32

• b - 11 = 32

• b = 32 + 11

• 11 - b = 32