Answer:
114
Step-by-step explanation:
Let x+y=25
Let x-y=13
Let's isolate one variable
x-y=13 can be re-written as x=13+y
Now that we isolated x we can replace it in the other equation
(x)+y=25
(13+y) +y=25
13 +2y=25
-13 -13
2y=12
12/2=6
We know that y=6
Let's replace y with 6 to find x
x+(y)=25
x+6=25
-6 -6
x=19
The goal of this problem was to find the product of x and y so now we have to multiply them
19*6=114
Your answer is 114
