Free Linear Equation Solver (Solve for x with Steps) Online
Solve single-variable linear algebraic equations (ax + b = cx + d) with step-by-step variable isolation and balance checks. — 100% free online utility, zero sign-up, zero paywalls, and private client-side processing.
How It Works
Enter Linear Equation
Input equation like 3x + 5 = 20 or 2(x - 4) = 14.
Isolate Variable
Shows step-by-step addition, subtraction, and division.
Verify Solution
Substitutes x back into original equation to prove equality.
Frequently Asked Questions
Related Math & Science Calculators & Utilities
Interlinked precision tools in the Math & Science collection.
Quadratic Equation Solver (Real & Complex Roots with Steps)
Solve any quadratic equation ax² + bx + c = 0 instantly. Computes discriminant (b² - 4ac), real roots, and complex imaginary roots with full steps.
Slope of a Line Calculator (m = (y₂ - y₁) / (x₂ - x₁))
Calculate the slope (m), angle of inclination (θ), y-intercept (b), and slope-intercept equation y = mx + b passing through two coordinate points.
Scientific Calculator (Trigonometry, Logarithms & Powers)
High-precision scientific calculator supporting sine, cosine, tangent, natural log (ln), exponential powers, square roots, and radian/degree modes.
Standard Deviation & Variance Calculator (Sample & Population)
Calculate Population (σ) and Sample (s) Standard Deviation, Variance, Mean, Sum of Squares, and Margin of Error for any numeric dataset.
Permutations & Combinations Calculator (nPr & nCr)
Calculate combinations nCr (order does not matter) and permutations nPr (order matters) with full factorials and step-by-step breakdown.
Percentage Increase & Decrease Calculator
Calculate percentage increase, percentage decrease, and percentage difference between any two values with step-by-step algebraic math.