The formula this page uses
Clear fractions by multiplying every term by the lowest common denominator, then collect like terms and divide.
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DeltaMath Calculator and Homework Help
Solve deltamath and homework help problems with clear steps, notation, and a final check.
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Calculate without using AI.
Evaluate the governing formula locally in your browser. Define each known quantity once, then change values to test another case instantly.
Choose an example or enter a formula.
Show your work Step-by-step method
- No account, AI request, or paid token is used.
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General math
DeltaMath Calculator and Homework Help explained
The short version
- DeltaMath assigns one skill at a time and keeps generating fresh numbers until you get a run of them right.
- That means memorising an answer never helps; only the method carries over to the next question.
- Most lost marks are answer-form problems, not maths problems: a decimal typed where an exact fraction was wanted.
What each part means
SymbolWhat it means
skill — The assigned skillThe named topic at the top of the assignment. It tells you which method is being tested.
required correct — The run you must hitHow many in a row you need. A wrong answer resets the count, not the assignment.
answer form — Fraction, decimal or exactRead the box label. 'Round to the nearest hundredth' and 'give an exact answer' want different things.
check — SubstitutionPutting your answer back into the original equation catches almost every slip before you submit.
Show your work: a full example
- A multi-step equation with fractions, a DeltaMath staple(2x − 1)/3 + 4 = x/2
- Lowest common denominator of 3 and 26, so multiply every term by 6
- Multiply through2(2x − 1) + 24 = 3x
- Expand4x − 2 + 24 = 3x
- Collect the constants4x + 22 = 3x
- Subtract 4x from both sides22 = −x, so x = −22
- Check by substituting(2(−22) − 1)/3 + 4 = (−45)/3 + 4 = −15 + 4 = −11, and x/2 = −11 ✓
A second, different case
- A different case: a system by elimination2x + 3y = 17 and 5x − 3y = 11
- The y terms are already oppositesadd the two equations
- Add left sides and right sides7x = 28
- Solve for xx = 4
- Substitute back into the first equation2(4) + 3y = 17, so 8 + 3y = 17
- Solve for y3y = 9, so y = 3
- Check in the second equation, which was not used to find y5(4) − 3(3) = 20 − 9 = 11 ✓
Copy-ready example
(2x − 1)/3 + 4 = x/2
A multi-step equation with fractions, a DeltaMath staple
Questions about the DeltaMath Calculator and Homework Help
Does this calculator send answers to DeltaMath?
No. Nothing here connects to your DeltaMath account. It works the problem the way you would on paper, so you can compare your steps against a full solution and find where yours diverged.
Why does DeltaMath keep giving me the same kind of problem?
Because it is measuring a run of correct answers, not a total. Each new question has fresh numbers drawn from the same skill, so the only thing that transfers is the method itself.
Why was my decimal marked wrong when it looks right?
Almost always a form mismatch. Either the box wanted an exact value like 1/3 or √2, or it wanted a specific number of decimal places. Read the instruction line above the box before typing.
How can I show work when the box only takes an answer?
Keep the work on paper or in a notebook beside you and number it to match the question. When a run resets, that record is the only way to see which step you keep repeating wrongly.