One and Two Step Equations

An equation is a mathematical statement that asserts the equality of two expressions, typically containing variables.

To solve an equation means to find the value(s) of the variable(s) that make the equation true.

A one-step equation is an equation that can be solved in a single operation, such as addition, subtraction, multiplication, or division.

A two-step equation is an equation that requires two operations to solve for the variable.

Divide both sides by 4.

To isolate a variable, you perform inverse operations to get the variable alone on one side of the equation.

Multiply both sides by 4, then add 7 to both sides to find x.

r = 72.

Subtract 3u from both sides.

Inverse operations are pairs of operations that undo each other, such as addition and subtraction or multiplication and division.