Question

3x/4-x/3=5 me ajude a resolver essa equação com cálculo

Answer 1

 3x   -   x     =  5
-----     -----     ----
  4        3          1

3.3x - 4.x   =    12.5
-------------     -------------
   12                   12

9x - 4x = 60
5x = 60
x = 60/5
x = 12
*******************************
Obs.:

mmc (4,3) = 12

4,3: 2
2,3: 2
1,3: 3
-------------
1,1 = 2.2.3 = 4.3 = 12

Answer 2

3X/4 - X/3 = 5 (MMC de 3,4,1 = 12)

9X/12 - 4X/12 = 60/12 ( Corta o denominador )

9X - 4X = 60
5X = 60
X = 60/5 => 12