помогите решить пожалуйста! а) -3х-1=0 б)2х+7=5 в)5х-2=0 г)9-4х=1
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1) - 3X - 1 = 03X = - 1
X = ( - 1/3 )
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2) 2X + 7 = 5
2X = - 2
X = ( - 1 )
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3) 5X - 2 = 0
5X = 2
X = 0.4
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4) 9 - 4X = 1
4X = 8
X = 2