MatemáticasBásico1 respuestas

Ayudenme paso a paso porfa?

Ayudenme paso a paso porfa. A) 3x / 2 - 1 = 5x + 2 b) 3x / 4 + 6 = 12 c) 3x / 2 - 5 = x - 4 Paso a paso please.

En resumen

3x / 2 - 1 = 5x + 2 3 / 2 x - 5x = 2 + 1 (3x - 10 x) / 2 = 3 - 7 / 2 x = 3 x = 3÷( - 7 / 2) x = - 6 / 7 3 / 4x + 6 = 12 3 / 4 x = 12 - 6 3 / 4x = 6 x = 6÷ (3 / 4) x = 8 3 / 2x - 5 = x - 4 3 / 2x - x = - 4 + 5 1 / 2 x = 1 x = 1÷ 1 / 2 x = 2.

Mejor respuesta

Yudelkis21
6

3x / 2 - 1 = 5x + 2

3 / 2 x - 5x = 2 + 1

(3x - 10 x) / 2 = 3 - 7 / 2 x = 3 x = 3÷( - 7 / 2) x = - 6 / 7

3 / 4x + 6 = 12

3 / 4 x = 12 - 6

3 / 4x = 6 x = 6÷ (3 / 4) x = 8

3 / 2x - 5 = x - 4

3 / 2x - x = - 4 + 5 1 / 2 x = 1 x = 1÷ 1 / 2 x = 2.