a)=>x=(890-5):15
x=885:15
x=59
b)648-34.x=444
34.x=648-444
34x=204
x=204:34
x=6
nguyenthuyngan
a) 890 : x = 15 dư 5
x =( 890 - 5 ) : 15
x = 59
b) 648 - 34 * x = 444
34 * x = 648 - 444
34 * x = 204
x = 204 : 34
x = 6
^^ Học tốt!
890:x=15 dư 5
x=(890-5):15
x=59
648-34xx=444
34xx=648-444
34xx=204
x=204:34
x=6
k mik nhanguyenthuyngan
a) 890 : x = 15 (dư 5)
x = (890 - 5) : 15
x = 885 : 15
x = 59
b) 444 = 648 – 34x
34x = 348 – 444
34x = 204
x=204 : 34
x = 6