Subtract:
(5 a-13 y+2 z) from (9 a-3 y+12 z)
To do: Subtract $(5 a-13 y+2 z) \ from \ (9 a-3 y+12 z)$
Solution:
Subtract: $( 5 a − 13 y + 2 z )$ from $( 9 a − 3 y + 12 z )$ means.
$( 9 a − 3 y + 12 z ) - ( 5 a − 13 y + 2 z )$
= $9 a − 3 y + 12 z - 5 a + 13 y - 2 z$
= $4a + 10y + 10z$
So $( 9 a − 3 y + 12 z ) - ( 5 a − 13 y + 2 z ) = 4a + 10y + 10z$
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