# Maths

**Algebra**Level 2

For every positive 2-digit number, \(x\), with tens digit \(t\) and units digit \(u\), let \(y\) be the 2-digit number formed by reversing the digits of \(x\). Which of the following expressions is equivalent to \(x-y\)?

F. \(9(t-u) \)

G. \(9(u-t) \)

H. \(9t - u \)

J. \(9u - t\)

K. 0