If 45x = 23y (x, y are not equal to 0.), then x: y=______ ：______ ．

If 45x = 23y (x, y are not equal to 0.), then x: y=______ ：______ ．

Because 45x = 23y, then x: y = 23:45 = 5:6; so the answer is: 5, 6

The solution of (3x + 1) system of equations

It can be obtained from equation 1 plus equation 2
5x + 3Y + 3x-3y = 6 + 2, that is, x = 1,
Substitute x = 1 into equation 1
5 + 3Y = 6, y = 1 / 3

Given equations 2006 (X-Y) + 2007 (Y-Z) - 2008 (x-z) = 02006 * 2006 (X-Y) + 2007 * 2007 (Y-Z) - 2008 * 2008 (x-z) = 2007, find z-y
Value of

2006（X-Y)+2007(Y-Z)-2008(X-Z)=0…… ①2006*2006(X-Y)+2007*2007(Y-Z)-2008*2008(X-Z)=2007 …… ② From Formula 1, we can get - 2x + y + Z = 0, that is, x = (y + Z) / 2. Substituting formula 2, we can get: 2006 * 2006 [(Z-Y) / 2] + 2007 * 2007 (Y-Z) - 2008 * 2008 [(Y-Z) / 2] = (2007-1) ^ 2