4. solve the following expression to uncover the value of x: $8(4)+2(20)+10=x$

(a) 72
(b) 50
(c) 62
(d) 82

Question

4. solve the following expression to uncover the value of x: $8(4)+2(20)+10=x$

(a) 72
(b) 50
(c) 62
(d) 82

Accepted Answer

{ "quality": "clear", "question_count": 1, "skills_matched": [ "step_cot", "multiple_choice_formatter", "explain_then_answer", "quick" ], "needs_drawing": false, "concepts_used": [], "new_concepts": [ "Order of Operations" ], "current_concepts": [ "Order of Operations", "Linear Equations" ] } ## Perform multiplications $$ \begin{aligned} 8(4) &= 32 \ 2(20) &= 40 \end{aligned} $$ ## Substitute and add terms $$ \begin{aligned} X &= 32 + 40 + 10 \ X &= 72 + 10 \ X &= 82 \end{aligned} $$

(A) 72

(B) 50

(C) 62

(D) 82

{ "subject": "Mathematics", "question_type": "Multiple Choice", "knowledge_point": [ "Mathematics", "Algebra", "Order of Operations" ] }

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QUESTION IMAGE

Question

Explanation:

Perform multiplications

Substitute and add terms

Answer: