An equation is a statement declaring that two values are equal. It has an equals sign and expressions on the left and right of the equals sign; the expression on the left and the right are equal.
Continue ReadingIn most equations, one or both sides have variables associated with them. The variable represents an unknown number. Manipulating the equation to come up with the solution to the variable is known as "solving the equation." Algebra covers a variety of types of equations and methods to solve them. For example, algebra covers linear equations of one, two or an indefinite number of variables, quadratic equations and equations of higher orders of power.
Learn more about AlgebraMathway offers a free pre-algebra equation solving tool. Students simply enter a homework problem, and the program provides the solution and step-by-step instructions that show how the answer was reached. Algebra.com, Coolmath.com, Math.com and MathPapa also offer numerous free educational pre-algebra resources that help students with homework.
Full Answer >An extraneous root is a solution, or root, introduced into an intermediate equation while attempting to solve another equation. It does not, however, represent the correct solution to the original equation to be solved.
Full Answer >The order of operations in mathematics is the order in which one performs certain operations when solving an equation. The simple way to remember this is by following "PEMDAS," which stands for "Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction."
Full Answer >To graph linear inequalities, start by drawing the line in the same fashion as you would with a linear equation. A linear inequality has many solutions that can lie above or below the line described by the expression.
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