Question

Twice from the number of five and an unknown number is equal to 26 .what is the unknown number

Answer 1

Let:

x = Unknown number

twice from the number of five and an unknown number is equal to 26, so:

`\begin{gathered} 2(x+5)=26 \\ 2x+10=26 \\ 2x=26-10 \\ 2x=16 \\ x=(16)/(2) \\ x=8 \end{gathered}`