Question

"Twice the number is equal to 10" write in a equation.

Answer 1

Let x be the number

According to the question..

2x=10

If we solve this... We get...

x=10/2=5

Hope this helps you...

Answer 2

let number is
$x \: then \: twice \: is \: x {}^{2}$
now according to the question

$x { }^{2} = 10$