# How do you write the following as an algebraic expression using x as the variable: Five more than the product of 7 and a number?

Mar 3, 2018

Literal word-to-number translation is very easy and fun.

#### Explanation:

We have to write five more than the product of 7 and an unknown. Let that unknown be x. Since we have to write 5 more than the product of 7 and x, we write
5+7x.

Mar 3, 2018

$7 x + 5$

#### Explanation:

$\text{let the number } = x$

$\text{product of 2 numbers means multiply the numbers}$

$\Rightarrow \text{the product of 7 and x } = 7 \times x = 7 x$

$\text{5 more means add on 5 to the product}$

$\Rightarrow 7 x + 5 \text{ is the required expression}$

Mar 3, 2018

$7 x + 5$

#### Explanation:

Five more than ........................?+5
the product of .........................(?xx?)+5
7 and a number.......................$\left(7 \times x\right) + 5$

Convention requires that this be written as: $7 x + 5$