What 2 Numbers Equal to 15 but have a difference of 5

Answer 1

Let x=one number

Let y=the other number

The equations are

x+y=15

x-y=5

You can solve this by the addition method.

Adding the 2 equations together.

2x=20 Divide both sides by 2

2x/2=20/2

x=10

Plug this into one of the equations to solve for y

x+y=15

10+y=15 Subtract 10 from both sides

10+y-10=15-10

y=5

The 2 numbers are 5 and 10.

Answer 2

let's have x represent a number and y represent another number

let's build a table and add some numbers possibilities then find the difference

X	Y	Difference	Result	Answer
1	14	13	15	Wrong
2	13	11	15	Wrong
3	12	9	15	Wrong
4	11	7	15	Wrong
5	10	5	15	Correct