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y in (-oo:+oo)
-((1/3)*y)-2*2 = 4 // - 4
-((1/3)*y)-2*2-4 = 0
(-1/3)*y-2*2-4 = 0
-1/3*y-8 = 0 // + 8
-1/3*y = 8 // : -1/3
y = 8/(-1/3)
y = -24
y = -24
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