Question

The sum of 4 times a number and 8 is equal to 9

Answer 1

Assume that the number is x

So add 4 times x and 8, then equate the sum by 9

`\begin{gathered} 4* x+8=9 \\ 4x+8=9 \end{gathered}`

To solve the equation subtract 8 from both sides

`\begin{gathered} 4x+8-8=9-8 \\ 4x=1 \end{gathered}`

Divide both sides by 4

`\begin{gathered} (4x)/(4)=(1)/(4) \\ x=(1)/(4) \end{gathered}`

Since x represents the number

So the number is 1/4