# How do you write a variable expression for the word phrase "twice the sum of 15 and a number"?

$y = 2 \left(15 + x\right)$
Twice" " -> 2xx?
The sum" " ->2(?+?)
of 15 " "->2(15+?)
and a number$\text{ } \to 2 \left(15 + x\right)$