Evaluate the expression for c = –2. –15 − 3c = _____

Identify expression and substitute: Identify the expression and substitute the value of c. Substitute –2 for c in the expression –15 − 3c. Expression: –15 − 3(–2)Substitute value of c: Multiply 3 by –2. 3 times –2 equals –6. But since it's subtracting a negative, it becomes –15 + 6.Multiply and adjust sign: Evaluate –15 + 6. –15 plus 6 equals –9.

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Evaluate the expression for $c = -2$ . $\newline$ $-15 - 3c =$ _____

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Algebra 2

Evaluate variable expressions involving integers

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Q. Evaluate the expression for

c = -2

\newline

-15 - 3c =

_____

Identify expression and substitute: Identify the expression and substitute the value of $c$ . Substitute $–2$ for $c$ in the expression $–15 − 3c$ . Expression: $–15 − 3(–2)$
Substitute value of $c$ : Multiply $3$ by $–2$ . $\newline$ $3$ times $–2$ equals $–6$ . $\newline$ But since it's subtracting a negative, it becomes $–15 + 6$ .
Multiply and adjust sign: Evaluate $–15 + 6$ . $–15$ plus $6$ equals $–9$ .