Question

21X – 3 – 6  + 6X – 4X = (9X + 18 + 5X)​

Answer 1

Respuesta:

x = 3

Explicación paso a paso:

• 21X – 3 – 6  + 6X – 4X = (9X + 18 + 5X)

• 21x + 6x - 4x - 9 = 9x + 5x + 18

• 27x - 4x - 9 = 14x + 18

• 23x - 9 = 14x + 18

• 23x - 14x = 18 + 9

• 9x = 27

• x = 27 / 9

• x = 3