Answer:
Answer is u = -35
Step-by-step explanation:
[tex]given \: equation \: \\ - 3(u + 35) = 0 \\ - 3 \times u + (- 3 \times 35) = 0 \\ - 3u \: - 105 = 0 \\ - 3u = 105 \\ u = \frac{105}{ - 3} \\ u = - 35[/tex]
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