Question

A number plus itself, plus twice itself, plus 4 times itself, is equal to 104. What is the number?i need the expression and answer please

Answer 1

When the problem says "a number", it refers to a variable which we are going to call n.

So, the expression would be

$n+n+2n+4n=104$

Now, we reduce all like terms

$8n=104$

Then, we divide the equation by 8

$\begin{gathered} \frac{8n}{8}=\frac{104}{8} \\ n=13 \end{gathered}$

Therefore, the number is 13.