РЕШИТЕ УРАВНЕНИЯ!!!  а) 7x-3=2x+1
б) 2x+3=5x-1
в) 3(x-2)=5x+3
г) 5x-7(x-3)=4x+5
д) 3(2x-0.8)=2(3x-1.2)
е) 5(2x-0.4)-3x=7x-2
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