Question

4. Mr.X is thinking of two numbers. -The sum of the numbers is 212. -The difference between them is 88. Solve a system of equations to determine the value of each number.​

Answer 1

62 and 150

Explanation:

let the 2 numbers be x and y , x > y , then

x + y = 212 → (1)

x - y = 88 → (2)

add the 2 equations term by term to eliminate y

2x + 0 = 300

2x = 300 ( divide both sides by 2 )

x = 150

substitute x = 150 into (1)

150 + y = 212 ( subtract 150 from both sides )

y = 62

the 2 numbers are 62 and 150