Math 8 LS

Front

What is an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions, typically containing an equals sign (e.g., 3x = 250).

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions, indicating that one is greater than, less than, or not equal to the other (e.g., 5x - 2 > 10).

Front

What is the reciprocal of a fraction?

Back

The reciprocal of a fraction is obtained by flipping the numerator and denominator (e.g., the reciprocal of 2/3 is 3/2).

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators without an equals sign (e.g., 3x + 2).

Front

What is the first step in solving the equation 3x - 5 = 25?

Back

The first step is to add 5 to both sides of the equation.

Front

What does it mean to solve an equation?

Back

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

Front

What is the difference between an equation and an expression?

Back

An equation includes an equals sign and asserts equality, while an expression does not include an equals sign.

Front

What is a variable in mathematics?

Back

A variable is a symbol (often a letter) that represents an unknown value in an expression or equation.

Front

What does it mean to isolate a variable?

Back

To isolate a variable means to manipulate an equation so that the variable is on one side and all other terms are on the other side.

Front

What is the purpose of using parentheses in mathematical expressions?

Back

Parentheses indicate which operations should be performed first in an expression.