Problem: the sum of two numbers is 16 . the difference is 4 . what are the two numbers ? let x be the first number . ley y be the second number x + y = 16 x - y = 4
Rationale: solution let x be the first number . ley y be the second number x + y = 16 x - y = 4 solve the system of equations by elimination adding the left sides and the right sides gives : x + x + y + - y = 16 + 4 2 x = 20 x = 10 since x + y = 16 , 10 + y = 16 10 + y = 16 10 - 10 + y = 16 - 10 y = 6 the numbers are 10 and 6 answer a
annotated_formula: add(multiply(divide(add(16, 4), const_2), const_10), subtract(16, divide(add(16, 4), const_2)))