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-5x=20-8
-5x=12 /:-5
x=2,4
d) 6(x+5)+1/5x=0
6x+30+1/5x=0
6x+31/5x=0
6x/5x=-31 /*5
5x=-155 /:5
x=-31
5x=20-8
5x=12
x=12 : 5
x=2.4
6(x+5)+1/5x=0
6x+30+1/5x=0
6x+31/5x=0
6x/5x=(-31) /*5
5x=(-155) /:5
x=(-31)