Answer :
X-y =x+y all over 2
Add the y onto the other side making x = x+y all over 2 +y
Then you times everything by 2
2x = x+2y
Subtract x from both sides giving you
X=2y
Add the y onto the other side making x = x+y all over 2 +y
Then you times everything by 2
2x = x+2y
Subtract x from both sides giving you
X=2y
You said that (x - y) is half of (x+ y) . I can work with that.
(x - y) = 1/2 (x + y)
x - y = 1/2 x + 1/2 y
Multiply each side by 2 :
2x - 2y = x + y
Subtract 'x' from each side:
x - 2y = y
Add 2y to each side:
x = 3y
They can be ANY two numbers, as long as 'x' is triple whatever 'y' is.
Let's try a couple:
x = 18, y = 6
(x - y) = 12
(x + y) = 24
12 = 1/2 of 24x
yay !
x = 30, y = 10
(x - y) = 20
(x + y) = 40
20 = 1/2 of 40
yay !
x = 3π, y = π
(x - y) = 2π
(x + y) = 4π
2π = 1/2 of 4π
yay !
(x - y) = 1/2 (x + y)
x - y = 1/2 x + 1/2 y
Multiply each side by 2 :
2x - 2y = x + y
Subtract 'x' from each side:
x - 2y = y
Add 2y to each side:
x = 3y
They can be ANY two numbers, as long as 'x' is triple whatever 'y' is.
Let's try a couple:
x = 18, y = 6
(x - y) = 12
(x + y) = 24
12 = 1/2 of 24x
yay !
x = 30, y = 10
(x - y) = 20
(x + y) = 40
20 = 1/2 of 40
yay !
x = 3π, y = π
(x - y) = 2π
(x + y) = 4π
2π = 1/2 of 4π
yay !
