Question

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

Answer 1

Boa noite,

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

MMC = 12

6X - 6 / 12 + 4X - 8 / 12 = 3X - 9 / 12

Corta o 12:

6x - 6 + 4x - 8 = 3x - 9

Organiza:

6x + 4x - 3x = 6 + 8 - 9

10x - 3x = 14 - 9

7x = 5

x = 5/7

Espero ter ajudado :)