Question

2x+12=5x-1 podem me ajudar
fazer a prova real

Answer 1

Boa noite..

2x + 12 = 5x - 1

12 + 1 = 5x - 2x 

13 = 3x 

x = 13 / 3

provando..

2.(13/3) + 12 = 5.(13/3) - 1 

26 / 3 + 12 = 65 / 3 - 1 

62 / 3 = 62 / 3

Answer 2

12+1=5x-2x
13=3x
x=13/3

Prova Real:
$2.(\frac{13}{3})+12=5.( \frac{13}{3} )-1$
$\frac{26}{3}+12= \frac{65}{3} -1$
$\frac{26}{3} + \frac{36}{3} = \frac{65}{3} - \frac{3}{3}$
$\frac{62}{3} = \frac{62}{3}$