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1. -9(6x + 1) = -45(2x + 2.6) -54x - 9 = - 90x - 117 -54x - 9 + 90x + 117 = 0 36x + 108 = 0 36x = -108 x = -3 Ответ: -3 2. 0.6(2x - 1) = -1.8(3x - 4) 1.2x + 0.6 = -5.4x + 7.2 1.2x + 0.6 + 5.4x - 7.2 = 0 6.6x - 6.6 = 0 6.6x = 6.6 x = 1 Ответ: 1
1)-54x-9=-90x-117 -54x+90x=-117+9 36x=-108 x=-3 2)1.2x+0.6=-5.4x+7.2 1.2x+5.4x=7.2-0.6 6.6x=6.6 x=1 Держи:)