For this problem, write it out... x-y=y... x=2y...8=2y...8/2=y...4=y
First, I made both y's on the same side( I added a y to both sides).
Then, I replaced the x with an 8.
Then, I divide out the 2 from both sides.
This leaves me with 4=y
So... x=8, y=4, 8-4=4
Transitive property: If 8 equals x and x equals y, then 8 equals y.
x = y/k: 24 = 6/k so k = ¼; when y = 8, x = 8/¼ = 32
x=4 y=4
x = 8 and y = 0
8
Transitive property: If 8 equals x and x equals y, then 8 equals y.
x = y/k: 24 = 6/k so k = ¼; when y = 8, x = 8/¼ = 32
x=4 y=4
x + y = 10 y = x + 8 so, x + (x + 8) = 10 2x + 8 = 10 2x + 8 - 8 = 10 - 8 2x = 2 x = 1 and y = 9 because y = x + 8 y = 1 + 8 y = 9
x = 8 and y = 0
8
x + y = 10 y = x + 8 so, x + (x + 8) = 10 2x + 8 = 10 2x + 8 - 8 = 10 - 8 2x = 2 x = 1 and y = 9 because y = x + 8 y = 1 + 8 y = 9
xy = 8 or y = 8/x
x=y-8 z=x+12
y=8 y = 2x y = 2(4) <-- substitute 4 for x y = 8 <-- this is your answer
y is 12
8