Question

X-5+1-2x=3-x
Esses sao os denominadores
10 5 4

Answer 1

X-5     1-2x     3-x
----- + ------ = -------
 10        5          4                  mmc = 20

2(x-5)  4(1-2x)   5(3-x)
-------+ --------- = --------
  20         20        20

2x-10    4-8x      15-5x
-------+ --------- = --------  ..... elimina-se os denominadores
  20         20        20

2x -10 +4 -8x = 15 -5x
2x -8x +5x = 15 +10 -4
-8x +7x = 25 - 4
-x = 24
 x = -24

Answer 2

Resposta:

4,5,10 (MMC) = 20

2x - 10 + 4 - 8x = 15 - 5x

2x - 10 + 4 - 8x = 15 - 5x

-6x -6 = 15 -5x

-1x = 9

x = 9/1

x = 9