Ch 6 Expressions Equations

Front

What is an expression?

Back

An expression is a combination of numbers, variables, and operators (such as +, -, *, /) that represents a value.

Front

What is an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions, typically containing an equal sign (=).

Front

What does the term 'variable' mean in mathematics?

Back

A variable is a symbol, often represented by a letter, that stands for an unknown value in an expression or equation.

Front

What does 'solving an equation' mean?

Back

Solving an equation means finding the value of the variable that makes the equation true.

Front

What is the difference between an expression and an equation?

Back

An expression does not have an equal sign and represents a value, while an equation has an equal sign and states that two expressions are equal.

Front

What operation does the word 'sum' indicate?

Back

The word 'sum' indicates the operation of addition.

Front

What operation does the word 'difference' indicate?

Back

The word 'difference' indicates the operation of subtraction.

Front

Write an equation for: 'A number decreased by 5 equals 10.'

Back

x - 5 = 10.

Front

What is the solution to the equation: 2x = 10?

Back

x = 5.

Front

Write an equation for: 'The product of a number and 3 is 12.'

Back

3x = 12.