Respuesta :
x + 1/3x + 1/4x = 19...multiply by common denominator of 12
12x + 4x + 3x = 228
19x = 228
x = 228/19
x = 12 <=== ur original number
12x + 4x + 3x = 228
19x = 228
x = 228/19
x = 12 <=== ur original number