Writing Equations

Front

What is an equation?

Back

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

Front

What does it mean to isolate a variable in an equation?

Back

To isolate a variable means to manipulate the equation so that the variable is on one side of the equation by itself.

Front

What is the purpose of solving an equation?

Back

The purpose of solving an equation is to find the value of the variable that makes the equation true.

Front

What does the term 'is' represent in an equation?

Back

The term 'is' represents equality, often denoted by the symbol '='.

Front

How do you translate 'five less than a number n' into an equation?

Back

It translates to n - 5.

Front

What is the equation for 'a number times two is eight'?

Back

The equation is 2x = 8.

Front

How would you express 'four less than 9 times a number' in an equation?

Back

It can be expressed as 9x - 4.

Front

What does the equal sign '=' indicate in an equation?

Back

The equal sign indicates that the expressions on both sides of it have the same value.

Front

What is the first step in solving the equation 2x = 8?

Back

The first step is to divide both sides by 2 to isolate x.

Front

What does it mean to make zero pairs when solving an equation?

Back

Making zero pairs involves adding or subtracting the same value from both sides of the equation to maintain equality.