Question

X + 2 - 1 + 3x = 4/20 + x

Answer 1

$x+2-1+3x = \frac{4}{20} + x$

$4x + 1 = \frac{4}{20} - x$

$3x + 1 = \frac{4}{20}$

$\frac{60x+20}{20} = \frac{4}{20}$

$60x+20 = 4$

$60x = -16$

$x = \frac{-16}{60}$

simplificando

$x = -\frac{4}{15}$

Answer 2

Boa noite

veja:

x + 2 - 1 + 3x = 4 / 20 + x

mmc = 20

20x + 40 - 20 + 60x = 4 + 20x

20 + 60x = 4

60x = 4 - 20

60x = - 16

x = - 16 / 60

x = - 4 / 15