<PRE><B>Question 337867</B>
I am a 5 digit number.
let it = 10000v + 1000w + 100x + 10y + z
:
Write an equation for each statement:
;
my tens digit is the sum of my hundreds digit and thousands digit.
y = x + w
:
 my tens digit is twice my ones digit.
y = 2z
:
 my hundreds digit is 1 more than zero.
x = 1
:
 my thousands digit is seven times my hundreds digit.
w = 7x
:
 my ten thousands digit is the same as my ones digit.
v = z
:
Replace x with 1 in each equation that has x
y = w + 1
we know w = 7x, therefore:
w = 7
we know y = w+x: therefore
y = 7 + 1
y = 8
y = 2z
2z = 8
z = 4
we know v=z therefore
z = 4
and
v = 4
:
we have:
v = 4
w = 7
x = 1
y = 8
z = 4
:
47184 is the number</PRE>