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y in (-oo:+oo)
(-1/8)*(y+2) = (-1/6)*(y-(2/5)) // - (-1/6)*(y-(2/5))
(-1/8)*(y+2)-((-1/6)*(y-(2/5))) = 0
(-1/8)*(y+2)+(1/6)*(y-2/5) = 0
1/6*(y-2/5)-1/8*(y+2) = 0
1/6*(y-2/5)-1/8*(y+2) = 0
1/24*y-19/60 = 0
1/24*y-19/60 = 0
1/24*y-19/60 = 0 // + 19/60
1/24*y = 19/60 // : 1/24
y = 19/60/1/24
y = 38/5
y = 38/5
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