2.7 Lesson: Literal Equations and Special Rules

Solving Literal Equations: Procedures

By Blake Jensen with credit to McGraw Hill

Multiple Choice

True or False

When solving for a variable you MUST get a single number

• True

• False

Multiple Select

What must you do before you begin solving for a variable?

Select the two that apply

• Simplify by distribution or combining like terms

• Get the variable on one side

• Add to both sides using addition and subtration

• Go backwards through the order of operations

Match

Put the order for inverse operations for solving

1 is what you must start with and 4 is what you must end with

• Addition and Subtraction

• Multiplication or Division

• Exponents

• Parenthesis

1

2

3

4

• 1

• 2

• 3

• 4

Multiple Choice

True or False

Both the numerator and denominator of a fraction are grouped with hidden parenthesis

• True

• False

Hidden parenthesis
Solve for P

1) Don't forget that numerators and denominators are grouped!
2) If there are multiple terms top or bottom the must go together
3) Since this is P plus z all divided by 15, we will have to undo division first!
4) The top is grouped in parenthesis and must be handled last

Math Response

Distribute the following:
Write you answer as the expression

3(2x - 5)

Type answer here

Correct Answer: 6x-15

Deg^°

Rad

Math Response

What do the following terms both divisible by? Write your answer as a number

3x + 12

Type answer here

Correct Answer: 3

Deg^°

Rad

Multiple Choice

True of False

3x + 12 is the same as 3(x+4)

• True

• False

Special Rules: Working both ways

Consider the following: