Question

if 5 is added to three times a number, it becomes the same as 7 is subtracted from four times the same number this fact can be represented as.

Answer 1

let the number be x
one number = 3x+5
other number= 4x-7

ACCORDING TO THE PROBLEM
3x+5 = 4x-7
putting variables and constant at one side
we get,
3x-4x = -7-5
-x=-12
so minus and minus will be cancelled and then we will get ,

x = 12