Question

solve for (b).

(b - 479 = 402)

(b =)

Explanation:

<pre_analysis>
{
"quality": "clear",
"question_count": 1,
"skills_matched": [
"step_cot",
"blank_filling_formatter",
"explain_then_answer",
"quick"
],
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"concepts_used": [
"One-Step Equations",
"Solving for Variables"
],
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</pre_analysis>

<reasoning>

Isolate the variable

\[
b - 479 + 479 = 402 + 479
\]

Calculate the sum

\[
b = 881
\]
</reasoning>

<answer>
Solve for \(b\).

\(b - 479 = 402\)

\(b =\) <blank>881</blank>
</answer>

<post_analysis>
{
"subject": "Mathematics",
"question_type": "Fill-in-the-blank",
"knowledge_point": [
"Mathematics",
"Algebra",
"One-Step Equations"
]
}
</post_analysis>

Answer:

<pre_analysis>
{
"quality": "clear",
"question_count": 1,
"skills_matched": [
"step_cot",
"blank_filling_formatter",
"explain_then_answer",
"quick"
],
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"One-Step Equations",
"Solving for Variables"
],
"new_concepts": [],
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"One-Step Equations",
"Solving for Variables"
]
}
</pre_analysis>

<reasoning>

Isolate the variable

\[
b - 479 + 479 = 402 + 479
\]

Calculate the sum

\[
b = 881
\]
</reasoning>

<answer>
Solve for \(b\).

\(b - 479 = 402\)

\(b =\) <blank>881</blank>
</answer>

<post_analysis>
{
"subject": "Mathematics",
"question_type": "Fill-in-the-blank",
"knowledge_point": [
"Mathematics",
"Algebra",
"One-Step Equations"
]
}
</post_analysis>