# How do you write the algebraic expression given: a number q tripled plus z doubled?

Apr 15, 2017

$3 q + 2 z$

#### Explanation:

An expression is a maths sentence or maths statement.
There are two numbers mentioned, $q \mathmr{and}$z

'Tripled' means multiplied by $3$, so $q$ tripled is $3 q$

'Doubled' means multiplied by $2$, so $z$ doubled is $2 z$

The required expression is a statement that these two terms are added together:

$3 q + 2 z$

Notice that we are not told what the answer must be equal to, so we cannot write an equation.