Math, asked by kesavasankar, 1 year ago

I need answer for these sums

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Answers

Answered by adinann
1
Subtracting :

x + y + z
-x + y - z
-x - y + z

On subtracting we get,

= ( x + y + z ) - ( - x + y - z ) - ( - x - y + z )

= x + y + z + x - y + z + x + y - z

 \bf \: Putting \: the \: like \: terms \: \\ \bf \: together \: we \: get

= x + x + x + y + y - y + z + z - z

= 3x + 2y - y + 2z - z

= 3x + y + z

If any doubt, please ask :)
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