Mathematics, 25.09.2021 14:00 clwalling04

Alright im gonna need some help finding the value of these letters (explain too please) giving points 1. $\frac{u}{8} =-4$
2. $-\frac{k}{5}= \frac{7}{5}$
3. $-\frac{1}{2} + a = \frac{5}{8}$
4. $-\frac{5}{7}= y-2$
5. $-\frac{2}{3}h = -22$
6. $39 \frac{n}{8} = -\frac{1}{4}$
7. $41\frac{2}{3}+r =-\frac{4}{9}$

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Alright im gonna need some help finding the value of these letters (explain too please) giving point...