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(8*(y-8))/5 = -2*y // + -2*y
(8*(y-8))/5-(-2*y) = 0
(8*(y-8))/5+2*y = 0
(8*(y-8))/5+(2*5*y)/5 = 0
8*(y-8)+2*5*y = 0
18*y-64 = 0
(18*y-64)/5 = 0
(18*y-64)/5 = 0 // * 5
18*y-64 = 0
18*y-64 = 0 // + 64
18*y = 64 // : 18
y = 64/18
y = 32/9
y = 32/9
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