Math Solver

Solve percentage and basic algebra problems with deterministic, step-by-step explanations — fully free and client-side (no AI API).

Examples: 25% of 80 · 20 is what % of 80 · 2x + 4 = 10 · (10 − 4) ÷ 2

Use case: Homework checks, quick percentage math, and linear equations without leaving the browser.

Cluster: Basic calculators hub · Complete percentage guide

Type a problem and get step-by-step work instantly. Runs fully in your browser — no signup, no AI API, no photo upload.

Solves as you type · Press Enter to solve now

Your answer appears here

Type a problem above, press Enter, or tap an example chip.

How we calculate. Percentage problems use standard formulas (part÷whole×100, X% of Y, percent change, discount, tip). Linear equations are rearranged term-by-term. Arithmetic uses operator precedence. See our methodology and accuracy policy.

How the free math solver works

Enter a problem, tap Solve with steps, and read each transform. Percentage templates cover the same formulas used across our dedicated calculators; linear equations are rearranged until the variable is isolated.

Supported in v1

  • Percentages: X% of Y, part as %, increase/decrease, percent change, discount, tip, find the whole
  • Algebra: linear equations such as 2x + 4 = 10 and 3(x + 2) = 15
  • Arithmetic: expressions with + − × ÷, parentheses, and powers

Not included yet

  • Photo / OCR input
  • Calculus, systems of equations, or word-problem NLP
  • Cloud AI explanations (by design — keeps the tool free to run)

Math solver FAQ

Is this math solver free?

Yes. It runs entirely in your browser with no signup and no paid AI API. The site is supported by ads.

Is my problem sent to a server?

No. Solving runs in your browser with JavaScript. Ads may load third-party scripts separately for monetization.

Why not Photomath-style photo solve?

Accurate math OCR usually requires paid APIs. This free AdSense-supported site ships typed solving first so every visit stays zero API cost.