MatemáticasBásico1 respuestas

2x + 21 = 3x - 612(x - 2) = 1 - xx + 5x - 4 = 18 - 2x?

2x + 21 = 3x - 6 12(x - 2) = 1 - x x + 5x - 4 = 18 - 2x.

En resumen

A. 2x + 21 = 3x - 62x - 3x = - 6 - 21 - x = - 27 x = 27 b. 12(x - 2) = 1 - x12x - 24 = 1 - x 12x + x = 1 + 24 13x = 25 x = 25 / 13 c. X + 5x - 4 = 18 - 2x6x - 4 = 18 - 2x 6x + 2x = 18 + 48x = 22x = 11 / 4.

Mejor respuesta

Marcelacristan
3

A. 2x + 21 = 3x - 62x - 3x = - 6 - 21 - x = - 27 x = 27

b.

12(x - 2) = 1 - x12x - 24 = 1 - x 12x + x = 1 + 24 13x = 25 x = 25 / 13

c.

X + 5x - 4 = 18 - 2x6x - 4 = 18 - 2x 6x + 2x = 18 + 48x = 22x = 11 / 4.