Answer:
t ≈ 2.61
Explanation:
13.7t - 4.7 = 9.9 + 8.1t ( subtract 8.1t from both sides )
5.6t - 4.7 = 9.9 ( add 4.7 to both sides )
5.6t = 14.6 ( divide both sides by 5.6 )
t ≈ 2.61 ( to the nearest hundredth )
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