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j in (-oo:+oo)
8.9-(3.3*j) = 2/3-2.2*j // - 2/3-2.2*j
8.9-(3.3*j)-(-2.2*j)-(2/3) = 0
2.2*j-3.3*j-2/3+8.9 = 0
8.23333333-1.1*j = 0 // - 8.23333333
-1.1*j = -8.23333333 // : -1.1
j = -8.23333333/(-1.1)
j = 7.48484848
j = 7.48484848
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