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Addition and Subtraction of like Terms

A two digit n...

Question

A two digit number has m in the tens place and n in the unit's place. What is the number?

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Solution

Dear student,

$T h e s \tan d a r d f o r m o f t w o d i g i t n u m b e r i s = 10 x + y w h e r e, x i s a t t e n' s p l a c e a n d y a t u n i t p l a c e A c c o r d i n g t o q u e s t i o n, m i s a t t e n s p l a c e a n d n a t u n i t p l a c e t h e r e f o r e, t h e 2 - d i g i t n u m b e r b e c o m e s 10 (m) + n = 10 m + n$

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