6*(x-2)=7x-(3x+1) ......ур-нение
6(x-2) = 7x - (3x+1) 6x - 12 = 7x - 3x - 1 6x - 12 = 4x - 1 6x - 4x = 12 - 1 2x = 11 x = 11 : 2 x = 5,5 Ответ: 5,5
6x-12=7x-3x-1 6x-7x+3x=12-1 2x=11 x=5.5