Writing Equations

Front

What is an equation?

Back

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

Front

What does it mean to solve an equation?

Back

To solve an equation means to find the value of the variable that makes the equation true.

Front

What is a variable in mathematics?

Back

A variable is a symbol, often a letter, that represents an unknown value in an equation.

Front

What does 'less than' indicate in an equation?

Back

'Less than' indicates subtraction in an equation.

Front

What does 'more than' indicate in an equation?

Back

'More than' indicates addition in an equation.

Front

How do you represent 'a number decreased by 5' in an equation?

Back

You represent it as 'x - 5', where x is the unknown number.

Front

How do you represent 'a number increased by 4' in an equation?

Back

You represent it as 'x + 4', where x is the unknown number.

Front

What is the equation for 'h is 17 more than 42'?

Back

The equation is 'h = 42 + 17'.

Front

How do you write 'the sum of a number and 9 equals 25' as an equation?

Back

You write it as 'x + 9 = 25'.

Front

What does 'equals' mean in an equation?

Back

'Equals' indicates that the two sides of the equation have the same value.