Answer:
f = -47/616
Explanation:
4.7(2f - 0.5) = -6(1.6f - 8.3f)
9.4f - 2.35 = -6(-6.7f)
9.4f = 40.2f + 2.35
-30.8f = 2.35
f = -2.35/30.8
f = -235/3080
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