fix(harness): correct math_08 reference answer

[pepuscz]

Summary

Correct the math_08 reference answer from 20 to 20/3.

Squaring the stated equation gives 9(3x+5) = 5(6x+5), hence 27x + 45 = 30x + 25 and x = 20/3. The current gold answer marks a correct model response as wrong.

The reproducible benchmark setup that exposed the scoring mismatch is published at https://github.com/pepuscz/strix-halo-deepseek-v4-flash.

Validation

• Parsed the complete JSONL file with jq
• Re-derived the answer independently from the prompt
• git diff --check

[cubic-dev-ai]

No issues found across 1 file

_{Re-trigger cubic}