Subtract 5 first, then divide by 3.
Free Interactive Pre-Algebra Tool
Step-by-Step Two-Step Equations Practice
Undo two operations in the correct order while keeping both sides balanced. Rewrite the complete equation after each valid algebra step so every part of the solution stays visible.
Start practicingNeed Help With Two-Step Equations?
Review why the constant is undone first, how to remove the coefficient second, how balance is preserved, and how negatives and fractions affect the solution.
Read the Two-Step Equations Guide
Problem 1 of 10
10%
Current equation
Undo the constant term first.
Original equation
3x + 5 = 20
Your work
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- Start 3x + 5 = 20
Solve this equation
3x + 5 = 20
Undo the constant term first, then undo the coefficient.
Hint
First undo the constant using the same operation on both sides. Then isolate the variable by undoing the coefficient.
Two-step equation reference
Add 7 first, then divide by 4.
Remove the +5 first, then divide by −3.
Subtract 6 first, then multiply by 4.
Add 9 first, then divide by 2.
Remove the constant first, then use the reciprocal.
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You completed both steps and isolated the variable.
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Practice Round Complete
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Undo the constant first
Remove the addition or subtraction outside the variable term before dealing with the coefficient.
Undo the coefficient second
Once the constant is gone, use division, multiplication, or a reciprocal to isolate the variable.
Keep both sides balanced
Every operation used to simplify the equation must preserve equality on both sides.
Example
What does two-step equation work look like?
Suppose the original equation is:
3x + 5 = 20
1
Subtract 5 from both sides
3x = 15
2
Divide both sides by 3
x = 5
The student enters each complete updated equation separately: first 3x = 15, then x = 5.
Practice Two-Step Equations by Showing Every Algebra Step
Two-step equations require two inverse operations to isolate the variable. In the usual form ax + b = c, remove the constant term first and then undo the coefficient.
This practice tool focuses on the changing equation rather than only the final answer. Students rewrite the complete balanced equation after each valid step, making the algebra visible from start to finish.
Why the Constant Comes First
In 3x + 5 = 20, the +5 is outside the multiplication by 3. Subtracting 5 first produces 3x = 15. The coefficient can then be removed by dividing both sides by 3.
Multiplication and Division Forms
Some two-step equations use a coefficient such as 4x, while others use division such as x/4. After the constant term is removed, use the inverse of the remaining multiplication or division.
Negative Numbers and Fractions
Intermediate and advanced problems include negative constants, negative coefficients, fractional coefficients, and fractional solutions. The same balance and inverse-operation rules still apply.
Three Difficulty Levels
Beginner problems use positive whole numbers. Intermediate problems introduce negative values and mixed signs. Advanced practice includes fractional coefficients, division forms, and fractional solutions.
Free Two-Step Equations Practice on Any Device
The tool is designed for desktop computers, tablets, and phones and can be used for tutoring sessions, homework support, classroom review, or independent practice.
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