MatemáticasBásico1 respuestas

5x - 9 = 3(x - 2)4x - 8 = 4(2x - 3)2x - 5 = x + 12?

5x - 9 = 3(x - 2) 4x - 8 = 4(2x - 3) 2x - 5 = x + 12.

En resumen

5x - 9 = 3(x - 2) 5x - 9 = 3x - 6 5x - 3x = - 6 + 9 2x = 3 x = 3 / 2 4x - 8 = 4(2x - 3) 4x - 8 = 8x - 12 - 8 + 12 = 8x - 4x 4 = 4x 4 / 4 = x 1 = x x = 1 2x - 5 = x + 12 2x - x = 12 + 5 x = 17.

Mejor respuesta

Yepeto4
4

5x - 9 = 3(x - 2)

5x - 9 = 3x - 6

5x - 3x = - 6 + 9

2x = 3

x = 3 / 2

4x - 8 = 4(2x - 3)

4x - 8 = 8x - 12 - 8 + 12 = 8x - 4x

4 = 4x

4 / 4 = x

1 = x

x = 1

2x - 5 = x + 12

2x - x = 12 + 5

x = 17.