Question

A number decreased by 7 is less than -6. Find the number.

Answer 1

The number is less than 1.

`x<1`

Step-by-step explanation:

Let x represent the number.

When the number is decresed by 7, it becomes;

`x-7`

From the question, When the number is decresed by 7 it is less than -6.

So;

`x-7<-6`

Solving the inequality by adding 7 to both sides of the equation. we have;

`\begin{gathered} x-7+7<-6+7 \\ x<1 \end{gathered}`

Therefore, the number is less than 1.

`x<1`