Course Content
Radical Laws and Notation
0/2
Units and Quantitative Reasoning
0/1
One Step Equations
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Two Step Equations
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Multi Step Equation
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Coordinate Plane
0/1
Understanding Slope
0/1
Slope Intercept Form
0/1
Point Slope Form
0/1
Standard Form
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Transformations of Linear Functions
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Parallel Lines
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Perpendicular Lines
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Understanding Inequalities
0/1
One Step Inequalities
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Two Step Inequalities
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Multi Step Inequalities
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Compound Inequalities
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System of Equations
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Solving System of Equations
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System of Inequalities
0/1
Understanding Functions
0/1
Function Notation
0/1
Interpret and Model Functions
0/1
Operations on Functions
0/1
Composite Functions
0/1
Inverse Functions
0/1
Arithmetic Sequence
0/1
Geometric Sequences
0/1
Mixed Sequence
0/1
Recursive Formulas For Sequences
0/1
Exponential Growth and Decay
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Algebra

What is a multi-step equation?

A multi-step equation is an equation that takes more than two steps to solve.

You still have the same goal as always:
👉 Get the variable by itself

The reason it takes more steps is because:

  • There may be like terms to combine

  • There might be parentheses

  • The variable may appear in more than one place


The most important rule (memorize this)

When solving multi-step equations, always work in this order:

1️⃣ Simplify both sides (combine like terms, distribute)

2️⃣ Add or subtract

3️⃣ Multiply or divide

Think of it as cleaning up before solving.


Step 1: Combine like terms

Like terms are terms with the same variable and exponent.

Example:

 
3x + 2x = 5x

So in this equation:

 
3x + 5 + 2x = 20

Combine the x terms:

 
5x + 5 = 20

Step 2: Solve like a two-step equation

From:

 
5x + 5 = 20

Undo the +5:

 
5x = 15

Undo the ×5:

 
x = 3

Answer: x = 3


Example with parentheses (very common)

 
4(x − 2) = 12

Step 1: Distribute

Multiply 4 by everything inside the parentheses:

 
4x − 8 = 12

Step 2: Undo −8

Add 8 to both sides:

 
4x = 20

Step 3: Undo ×4

Divide both sides by 4:

 
x = 5

Answer: x = 5


Example with variables on both sides

 
6x + 4 = 2x + 20

Step 1: Get variables on one side

Subtract 2x from both sides:

 
4x + 4 = 20

Step 2: Undo +4

Subtract 4:

 
4x = 16

Step 3: Undo ×4

Divide by 4:

 
x = 4

Answer: x = 4


Always check your answer

Plug your answer back into the original equation.

Example:

 
4(x − 2) = 12
x = 5

Check:

 
4(5 − 2) = 4 × 3 = 12 ✅

If both sides match, you’re good!


Common beginner mistakes (and how to avoid them)

  • ❌ Skipping steps → ✅ Write everything

  • ❌ Forgetting to distribute → ✅ Do it first

  • ❌ Mixing up order → ✅ Simplify, then solve

  • ❌ Not checking → ✅ Always check

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