Ответы на вопрос:
3*x=-1/2
x=-1/2: 3
x=-1/2"*1/3
x=-1/6
3 *( -1/6)=-1/2
-5*x=0
x=0: (-5)
x=0
-5 * 0 = 0
-4*x = 8/25
x = 8/25 : (-4)
x = - 8/25 * 4/4
x = - 2/25
-4* (-2/25) = 8/25
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