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Complete the Steps – Parentheses First
publish date: 2026/05/07 22:17:48.405757 UTC
Complete the step-by-step solution for \(-15 + 3(-4 + 7 \cdot 2)\):
Step 1 — Multiply inside parentheses: \(7 \cdot 2 =\) (1)
Step 2 — Add inside parentheses: \(-4 + 14 =\) (2)
Step 3 — Multiply: \(3(10) = 30\)
Step 4 — Final answer: \(-15 + 30 = 15\)
Correct Answer
(1) 14
(2) 10
Explanation
Inside the parentheses, always apply the order of operations: multiply \(7 \cdot 2 = 14\) before adding \(-4 + 14 = 10\). Then bring the result outside: \(3(10) = 30\), and finally \(-15 + 30 = 15\).
Reference
Mathematics for college students