a)\(x-4368=13936=>x=13936+4368=18304\)
b)\(385*(49-39)=>385*10=3850\) nhé
x - 4368 = 3484 x 4
x - 4368 = 13936
x = 13936 + 4368
x = 18304
b) 49 x 385 - 39 x 385
= 385 x ( 49 - 39 )
= 385 x 10
= 3850
x - 4368 = 3484 x 4
x - 4368 = 13936
x = 13936 + 4368
x = 18304
b) 49 x 385 - 39 x 385
= 385 x ( 49 - 39 )
= 385 x 10
= 3850