Question

Twice a number when decreased by 7 gives 45. Find the number??? Answer

Answer 1

let the number be x
according to question
2x-7=45
2x=45+7
2x=52
x=26ans.

Answer 2

$solution \: \\ let \: the \: number \: is \: = x \\ then \\ 2x - 7 = 45 \\ 2x = 52 \\ (x = 26)ans$