F) 2 / 3 + x / 4 = 3 / 4 - x / 3g)2 / 3² = 2x - 8 / 7 + 2³h)5 / 4 ?
F) 2 / 3 + x / 4 = 3 / 4 - x / 3 g)2 / 3² = 2x - 8 / 7 + 2³ h)5 / 4 . 3 + x / 4 = 2 / 3 - 2 / 3x.
F) 2 / 3 + x / 4 = 3 / 4 - x / 3 g)2 / 3² = 2x - 8 / 7 + 2³ h)5 / 4 . 3 + x / 4 = 2 / 3 - 2 / 3x.
En resumen
2 / 3 + x / 4 = 3 / 4 - x / 3 x / 4 + x / 3 = 3 / 4 - 2 / 3 reducimos a comun denominador m. C.
2 / 3 + x / 4 = 3 / 4 - x / 3
x / 4 + x / 3 = 3 / 4 - 2 / 3
reducimos a comun denominador m.
C. m = 12
(3x + 4x) / 12 = (9 - 8 ) / 12
3x + 4x = 9 - 8
7x = 1
x = 1 / 7 = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
2 / 3² = 2x - 8 / 7 + 2³
2 / 9 = 2x –8 / 7 + 8
2x = 2 / 9 + 8 / 7 –8
2x = 14 + 72 – 504 / 63
126 x = - 418
x = - 418 / 126 = - 209 / 63 = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
5 / 4 .
3 + x / 4 = 2 / 3 - 2 / 3x
15 / 4 + x / 4 = 2 / 3 –2 / 3 x
x / 4 + 2x / 3 = 2 / 3 – 15 / 4
5 / 3 x = - 37 / 12
60x = - 111
x = - 111 / 60.