Respuesta :
3(x - 4) + 5x = 9x - 36 Β Given
(3)(x) + (3)(-4) + 5x = 9x - 36 Β Β Β Distributive Property
3x - 12 + 5x = 9x - 36
(3x + 5x) - 12 = 9x - 36 Β Β Β Combine like terms
8x - 12 = 9x - 36
8x - 8x - 12 = 9x - 8x - 36 Β Subtraction Property of Equality
0 - 12 = x - 36 Β Β Β Β Additive Identity Property
-12 = x - 36
-12 + 36 = x - 36 + 36 Β Β Β Addition Property of Equality
24 = x
Answer: Additive Identity Property