6x-8 = 5x-3(x-4). 5(x-3,6) = 9x. 5+2x = 3(2x-5)-8. 2(1-4x)-12+3x = 15. 2(7x+11) - 5x = 5x. 15-4(7-x) = 11. 6 = 8-5(7x-1). (4x-6)-(9x-4) = 18.

Привет! Давай разберем эти уравнения вместе! 1) 6x - 8 = 5x - 3(x - 4) 6x - 8 = 5x - 3x + 12 6x - 8 = 2x + 12 6x - 2x = 12 + 8 4x = 20 x = 5 2) 5(x - 3.6) = 9x 5x - 18 = 9x 5x - 9x = 18 -4x = 18 x = -4.5 3) 5 + 2x = 3(2x - 5) - 8 5 + 2x = 6x - 15 - 8 5 + 2x = 6x - 23 2x - 6x = -23 - 5 -4x = -28 x = 7 4) 2(1 - 4x) - 12 + 3x = 15 2 - 8x - 12 + 3x = 15 -5x - 10 = 15 -5x = 25 x = -5 5) 2(7x + 11) - 5x = 5x 14x + 22 - 5x = 5x 9x + 22 = 5x 9x - 5x = -22 4x = -22 x = -5.5 6) 15 - 4(7 - x) = 11 15 - 28 + 4x = 11 -13 + 4x = 11 4x = 24 x = 6 7) 6 = 8 - 5(7x - 1) 6 = 8 - 35x + 5 6 = 13 - 35x 35x = 13 - 6 35x = 7 x = 0.2 8) (4x - 6) - (9x - 4) = 18 4x - 6 - 9x + 4 = 18 -5x - 2 = 18 -5x = 20 x = -4 Надеюсь, теперь тебе стало понятнее!