Question

Add the following: t-8tz, 3tz-z, z-t

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Hint: The given is an algebraic expression.Make all like terms in one group and find the sum of terms by adding numerical coefficients of the terms in each group.

$\Rightarrow t-8tz+3tz-z+z-t$
$\Rightarrow -5tz$
$\therefore \left( t-3tz \right)+\text{ }\left( 3tz-z \right)\text{ }+\text{ }\left( z-t \right)=-5tz$