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zał. 2x+4≠0 ⇒2x≠-4⇒ x≠-2
4-x≠0⇒ -x≠-4⇒ x≠4
D=R/{-2,4}
-2(4-x)=3(2x+4)
-8+2x=6x+12
2x-6x=12+8
-4x=20/:(-4)
x=-5∈D
Odp. Rozwiązaniem jest x=-5