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HomeMathematicsEquations & Inequalities

Equations & Inequalities Calculators

Linear, quadratic, cubic, system, and inequality solvers.

20 calculatorsFree to useInstant results

Popular Equations & Inequalities Calculators

Most used tools

Popular

Linear Equation Solver

Solve ax + b = 0 equations

Use Calculator
Popular

System of 2 Equations Solver

Solve 2x2 linear systems

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Popular

Quadratic Equation Solver

Solve ax²+bx+c=0 with quadratic formula

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Popular

Linear Inequality Solver

Solve linear inequalities

Use Calculator

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Recently popular tools

System of 2 Equations Solver

Solve 2x2 linear systems

System of 3 Equations Solver

Solve 3x3 linear systems

Quadratic Equation Solver

Solve ax²+bx+c=0 with quadratic formula

Exponential Equation Solver

Solve a^x=b exponential equations

All Equations & Inequalities Calculators

20 tools available

Popular

Linear Equation Solver

Solve ax + b = 0 equations

Use Calculator
PopularTrending

System of 2 Equations Solver

Solve 2x2 linear systems

Use Calculator
Trending

System of 3 Equations Solver

Solve 3x3 linear systems

Use Calculator
PopularTrending

Quadratic Equation Solver

Solve ax²+bx+c=0 with quadratic formula

Use Calculator

Cubic Equation Solver

Solve ax³+bx²+cx+d=0 cubic equations

Use Calculator

Quartic Equation Solver

Solve ax⁴+bx³+cx²+dx+e=0 quartic equations

Use Calculator

Absolute Value Equation Solver

Solve |ax+b|=c equations

Use Calculator

Radical Equation Solver

Solve √(ax+b)=c radical equations

Use Calculator

Rational Equation Solver

Solve (ax+b)/(cx+d)=e rational equations

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Trending

Exponential Equation Solver

Solve a^x=b exponential equations

Use Calculator

Logarithmic Equation Solver

Solve log_a(x+b)=c equations

Use Calculator

Trigonometric Equation Solver

Solve sin/cos/tan equations

Use Calculator
Popular

Linear Inequality Solver

Solve linear inequalities

Use Calculator

Quadratic Inequality Solver

Solve ax²+bx+c ⋛ 0 inequalities

Use Calculator

Compound Inequality Solver

Solve a < x < b compound inequalities

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Absolute Value Inequality Solver

Solve |x| ⋛ a inequalities

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Polynomial Inequality Solver

Solve polynomial ⋛ 0 inequalities

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Interval Notation Converter

Convert inequalities to interval notation

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Number Line Grapher

Graph solution sets on a number line

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Equation Checker

Verify if x solves an equation

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About Equations & Inequalities Calculators

Our equations & inequalities calculators provide accurate, instant results for students, teachers, and professionals. Each calculator uses mathematically verified formulas and handles edge cases like invalid inputs, division by zero, and overflow conditions.

Whether you need to solve equations, compute integrals, find prime factors, or convert between number bases, our equations & inequalities tools deliver reliable results with step-by-step explanations to help you understand the underlying mathematics.