If $a = - 10$ , evaluate
(i) $3 a - 2$ .

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Solution

Given : $3 a - 2$

Substituting $a = - 10$ in the given expression

$3 a - 2 = 3 \times (- 10) - 2$

$= - 30 - 2$

$= - 32$

Hence, the value of $3 a - 2$ for $a = 10$ is $- 32$ .

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