Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor.

Combine the like terms (4x and −2x): 4x−2x=2x. Combine constants (5 and 3; 5 + 3 = 8). Rewrite the simplified expression: 2x+8. The distributive property of multiplication helps you to remove …

The solve for x calculator allows you to enter your problem and solve the equation to see the result. Solve in one variable or many.

Algebra Calculator shows you the step-by-step solutions! Solves algebra problems and walks you through them.

Simply enter the equation, and the calculator will walk you through the steps necessary to simplify and solve it. Each step is followed by a brief explanation. Solve equations with variables in the …

Online math solver with free step by step solutions to algebra, calculus, and other math problems. Get help on the web or with our math app.

Explore math with our beautiful, free online graphing calculator. Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and more.

Solve an equation, inequality or a system.

Free math problem solver answers your algebra homework questions with step-by-step explanations.

三角学是数学的一个分支，主要研究三角形，以及三角形中边与角之间的关系。 三角学定义了三角函数，可以描述三角形边与角的关系，而且都是周期函数，可以用来描述周期性的现象。 三 …