разрешите неравенство 6x < 9x+15

б) (-∞;-5)

в)(-∞;5)

г)(-∞;1)

спасибо)

рада помочь)))))

вот этот а) (-5;+∞)

Simplifying 6x = 9x + -15 Reorder the terms: 6x = -15 + 9x Solving 6x = -15 + 9x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9x' to each side of the equation. 6x + -9x = -15 + 9x + -9x Combine like terms: 6x + -9x = -3x -3x = -15 + 9x + -9x Combine like terms: 9x + -9x = 0 -3x = -15 + 0 -3x = -15 Divide each side by '-3'. x = 5 Simplifying

6x < 9x+15 6x-9x<15-3x<15x>-5

6х-9х<15-3х<15х> 15: (-3)х> -5(-5 ; +∞)