Identify Expression: Identify the expression to evaluate.We need to substitute c=−7 into the expression 10−c.
Substitute Value: Substitute −7 for c in the expression.Expression after substitution: 10−(−7)
Evaluate Expression: Evaluate the expression 10−(−7).10−(−7)=10+7 (because subtracting a negative is the same as adding the positive equivalent)10+7=17
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