x+12,45=65,467
=>x=65,467-12,45=53,017
x-45=86,745
=>x=86,745+45=131,745
x:12,3=34,5
=>x=34,5.12,3=424,35
x + 12,45 = 65,467
x = 65,467 - 12,45
x = 53,017
x - 45 = 86,745
x = 86,745 + 45
x = 131,745
x : 12,3 = 34,5
x = 34,5 x 12,3
x = 424,35
x + 12,45 = 65,467
x = 65,467 - 12,45
x = 53,017
x - 45 = 86,745
x = 86,745 + 45
x = 131,745
x : 12,3 = 34,5
x = 34,5 x 12,3
x = 424,35
x+12,45=65,467
x=65,467-12,45
x=53,017
b)x-45=86,745
x=86,745+45
x=86,790
c) x:12,3=34,5
x=34,5x12,3
x=424,35
x+12,45= 65,467
=) X= 65,467- 12,45
x= 53,017
x-45= 86,745
x= 86,745+45
x= 131,745
x: 12,3= 34,5
x= 34,5 .12,3
x= 424,35
k cho mk nhé
ket qua là :a)53,017 b)131,745 c)424,35
x + 12, 45 = 65, 467 x- 45 = 86,745
x= 65,467 - 12,45 x = 86,745 + 45
x=53,017 x =131,745
x : 12,3 = 34,5
x = 34,5 x 12,3
x = 424.35