7x - 28 = 9x + 2x + 4 y 2x + x + 1 = 4x - 1?
7x - 28 = 9x + 2x + 4 y 2x + x + 1 = 4x - 1.
7x - 28 = 9x + 2x + 4 y 2x + x + 1 = 4x - 1.
En resumen
Respuesta : X = 8Explicación paso a paso : 7x - 28 = 9x + 2x + 47x - 9x - 2x = 28 + 4 - 4x = 32x = 32 / - 4x = 8.
Respuesta : X = 8Explicación paso a paso : 7x - 28 = 9x + 2x + 47x - 9x - 2x = 28 + 4 - 4x = 32x = 32 / - 4x = 8.
7x - 28 = 9x + 2x + 4
7x - 9x - 2x = 28 + 4 - 4x = 32
X = 32 / - 4
X = - 8
2x + x + 1 = 4x - 1
2x + x - 4x = - 1 - 1 - x = - 2
X = 2.