15x - 10 = -9x + 2
15x +9x -10 = -9x + 9x + 2
15 x + 9x - 10 + 10 = 2 + 10
15 x + 9 x = 2 + 10
24x = 12
24x/24 = 12/24
x = 1/2
hope this helps
Answer:

Step-by-step explanation:

All we can do here is combine like terms (add those that have the same the same exponent)

Good luck!
Answer:
X³-x
Step-by-step explanation:
Lcm
x(x-1)(x+1)
x(x²-1)
x³-x