MatemáticasBásico1 respuestas

9 - 2(x + 4) = 10(25 - x + 4) = 5 - 3x - 4(x + 1)?

9 - 2(x + 4) = 10(25 - x + 4) = 5 - 3x - 4(x + 1).

En resumen

9 - 2(x + 4) - 10(25 - x + 4) = 5 - 3x - 4(x + 1) 9 - 2x - 8 - 10(25 + 4 - x) = 5 - 3x - 4x - 4 9 - 8 - 2x - 10(29 - x) = 5 - 4 - 7x 1 - 2x - 290 + 10x = 1 - 7x - 2x + 10x + 1 - 290 = 1 - 7x 8x - 289 = 1 - 7x 8x + 7x = 1 + 289 15x = 290 x = 290 / 15 x = 58 / 3.

Mejor respuesta

Plutonman
7

9 - 2(x + 4) - 10(25 - x + 4) = 5 - 3x - 4(x + 1)

9 - 2x - 8 - 10(25 + 4 - x) = 5 - 3x - 4x - 4

9 - 8 - 2x - 10(29 - x) = 5 - 4 - 7x

1 - 2x - 290 + 10x = 1 - 7x - 2x + 10x + 1 - 290 = 1 - 7x

8x - 289 = 1 - 7x

8x + 7x = 1 + 289

15x = 290

x = 290 / 15

x = 58 / 3.