2-3(2х+5)=(3х-15)-6 помогите
2-6х-15=3х-15-6 9х=8 х=8/9
2 - 3(2x + 5) = (3x - 15) - 6 2 - 6x - 15 = 3x - 15 - 6 - 6x - 3x = - 2 + 15 - 15 - 6 - 9x = - 8 x = 8/9