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y in (-oo:+oo)
13/8 = y/11 // - y/11
13/8-(y/11) = 0
13/8-1/11*y = 0 // - 13/8
-1/11*y = -13/8 // : -1/11
y = -13/8/(-1/11)
y = 143/8
y = 143/8
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