2х+17=22+3х 18+3х=х+14 25-4х=12-5х 13х+27=16х+4,5 - вопрос №852909021722318314254125132716452145171413702 от кама148 03.04.2020 13:15

Question

Математика: 2х+17=22+3х 18+3х=х+14 25-4х=12-5х 13х+27=16х+4,5 21х+45=17+14х 13х+70=2х+15

кама148 · Answer

2x+17 = 22+3x2x-3x = 22-17-x = 5x = -518+3x = x+143x-x = 14-182x = -4x = -225-4x = 12-5x-4x+5x = 12-25x = -1313x+27 = 16x+4,513x-16x = 4,5-27-3x = -22,5x = 7,521x+45 = 17+14x21x-14x = 17-457x = -28x = -413x+70 = 2x+1513x-2x = 15-7011x = -55x = -5...