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February 28, 2015

February 28, 2015

Posted by **mpumelelo** on Sunday, March 10, 2013 at 1:10pm.

- maths -
**Dr. Jane**, Sunday, March 10, 2013 at 1:21pmt = 10's digit and u = unit's digit.

(10t + u)/u = 3

Multiply both sides by u

10t + u = 3u

10t = 2u

5t = u

10u+t =36 + 10t + u

9u - 9t =36

divide by 9

u-t = 4 use this eqution along with the first equation

Substitute u = 5t to find u and then find t.

Check your answer.

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