Question

The sum of sum of two numbers is 39 and their difference is 5. What is the larger number?

Answer 1

Answer:

Step-by-step explanation:

it is 39

Answer 2

Answer: 22

Step-by-step explanation:

$x + y= 39\\x-y=5$

multply the buttom eqn with -1

$x + y=39\\-x+y=-5$

solve for y

$2y=34\\y= 34/2\\y= 17$

substitute y into one of the eqn

$x+y=39\\x+17=39$

subtract 17 from both side

$x= 39-17\\x=22$