12x -11=8x+5 9-3x=2(x+22) 2(4x-6)=5(x+3) 0,3(4x-1)+2,3=1,1x-27 - вопрос №805786212118593222246530341231127 от missmarial2010 08.04.2020 00:18

Question

Математика: 12x -11=8x+5 9-3x=2(x+22) 2(4x-6)=5(x+3) 0,3(4x-1)+2,3=1,1x-27

missmarial2010 · Answer

1) 12x - 11 = 8x + 512x - 8x = 5 + 114x = 16x = 42) 9 - 3x = 2(x+22)9 - 3x = 2x + 442x + 3x = 9 - 445x = -35x = -73) 2(4x-6) = 5(x+3)8x-12 = 5x + 158x - 5x = 15 + 123x = 27x = 94) 0.3(4x-1)+2.3=1.1x-271.2x-0.3+2.3=1.1x-271.2x-1.1x=-27+0.3-2.30.1x=-29x=-290...