Answer:
- 2g - 2f
Explanation:
- 3g + 2f + g - 4f ← collect like terms
= (- 3g + g) + (2f - 4f)
= - 2g + (- 2f)
= - 2g - 2f
-2f -2g
-3g+2f+g-4f
Combine like terms
2f-4f -3g+g
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