Question

Five less than the product of 6 and a number is 7. Use the variable b for the unknown number

Answer 1

From the question, we've been told that product of 6 and a number, b, is 5 less than 7. This can be expressed mathematically as shown below;

`(6\ast b)-5=7`

To find b, let's add 5 to both sides of the equation;

`\begin{gathered} 6b-5+5=7+5 \\ 6b=12 \end{gathered}`

Let's divide both sides of the equation by 6;

`\begin{gathered} (6b)/(6)=(12)/(6) \\ b=2 \end{gathered}`

Therefore, the unknown number, b, is 2.