Question

RESOLVA A EQUAÇÃO:
2x/3 -5= 2(x-3)/4

Answer 1

Resposta:

x = 21

Explicação passo-a-passo:

$\frac{2x}{3} -5 = \frac{2(x-3)}{4}\\\\\frac{2x}{3} - \frac{3*5}{3} = \frac{2x -6}{4}\\\\\frac{2x - 15}{3} = \frac{2x-6}{4}\\\\4(2x-15) = 3(2x-6)\\\\8x - 60 = 6x -18\\\\8x - 6x = -18 +60 \\\\2x = 42\\\\x = 42/2\\\\ x = 21$

Answer 2

Resposta:

x = 21

Explicação passo-a-passo:

_2x_ - 5 = _2(x - 3)_

 3                     4

m.m.c ⇒12

2x(4) - 5(12) = 3(2x - 6)

8x -60 = 6x - 18

8x - 6x  = -18 + 60

2x = 42

x = 42/2

x = 21