Evaluate the expression 3x - 2(y + 4) when x = 5 and y = 2.

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Multiple Choice

Evaluate the expression 3x - 2(y + 4) when x = 5 and y = 2.

Explanation:
Evaluating this expression uses substitution and the distributive property. Start by replacing x with 5 and y with 2. Compute inside the parentheses first: y + 4 = 2 + 4 = 6. The expression becomes 3(5) − 2(6) = 15 − 12, and then 15 − 12 = 3. You can also apply the distributive idea first: −2(y + 4) = −2y − 8, so the expression is 3x − 2y − 8. Substituting x = 5 and y = 2 gives 3(5) − 2(2) − 8 = 15 − 4 − 8 = 3. The result is 3.

Evaluating this expression uses substitution and the distributive property. Start by replacing x with 5 and y with 2.

Compute inside the parentheses first: y + 4 = 2 + 4 = 6. The expression becomes 3(5) − 2(6) = 15 − 12, and then 15 − 12 = 3.

You can also apply the distributive idea first: −2(y + 4) = −2y − 8, so the expression is 3x − 2y − 8. Substituting x = 5 and y = 2 gives 3(5) − 2(2) − 8 = 15 − 4 − 8 = 3. The result is 3.

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