$(a)$ $-10$ $(b)$ $-12$
Work Step by Step
$2x-10$ $(a)$ $x=0$ Replace $x$ with $0$ and evaluate the indicated operations: $2(0)-10=-10$ $(b)$ $x=-1$ Replace $x$ with $-1$ and evaluate the indicated operations: $2(-1)-10=-2-10=-12$
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