Subtract 8x – 9y + 4z from the sum of 5x + 4y + 5z and 5x – 6y + 7z.





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2 thoughts on “<br />Subtract 8x – 9y + 4z from the sum of 5x + 4y + 5z and 5x – 6y + 7z.<br /><br /><br /><br /><br /><br />​”

1. 2+2=4

   4+6= 10

   10×6=60 hope it help

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2. = (5x + 4y + 5z) + (5x – 6y + 7z)

   = 5x + 4y + 5z + 5x – 6y + 7z

   = 5x + 5x +4y – 6y + 5z + 7z

   = 10x – 2y + 12x

   Then subtract 8x – 9y + 4z from 10x – 2y + 12x

   = (10x – 2y + 12x) – (8x – 9y + 4z)

   = 10x – 2y + 12x – 8x – 9y + 4z

   = 10x – 8x – 2y – 9y + 12x + 4x

   = 2x – 11y + 16z

   Hope it helps..

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