Q62.

Evaluate each expression if $x = - 2, y = 6,$ and $z = 5 .$ $- 2 x - 3 y + 2 z$

Verified

Answer

The value of the expression $- 2 x - 3 y + 2 z$ is $- 4 .$

1Step-1 –Concept of evaluating the expression

The value of the variable in the expression can be calculated by putting the value of variable in the expression

2Step-2 –Identifying the conditions

The given equation is $- 2 x - 3 y + 2 z$ .and the values of the variables are, $x = - 2, y = 6, z = 5 .$

3Step-3 –Simplify the expression

$\begin{matrix} - 2 x - 3 y + 2 z = - 2 (- 2) - 3 (6) + 2 (5) \\ = - 4 - 18 + 10 \\ = - 14 + 10 \\ = - 4 . \end{matrix}$