I'm sure there's an algebraic way of determining that, but I don't know it. I just know that 34+12 = 46, and that's 22 apart, so one different in each direction = 24...
Write an equation system based on the problem eg. a and b is the numbers a + b = 46 a - b = 24
Solve the equation system by elimination First, I'm eliminating a to find the value of b a + b = 46 a - b = 24 --------------- - (substract) 2b = 22 b = 22/2 b = 11
Second, I'm eliminating b to find the value of a a + b = 46 a - b = 24 --------------- + (add) 2a = 70 a = 70/2 a = 35
