Решить уравнение 12/x-10=10/x-12
12/(x-10)=10/(x-12) , x≠10,x≠12
12(x-12)=10(x-10)
12x-144=10x-100
12x-10x=144-100
2x=44
x=22
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12/x-10=10/x-12
12/x-10/x=10-12
2/x=-2
x= 2: (-2)
x=-1