a) 45 + 15 + x = 100
60 + x = 100
x = 100 - 60
x = 40
b) 40 . 2 + x = 100
80 + x = 100
x = 100 - 80
x = 20
a)45+15+x=100
60+x=100
x =100-60
x =40
b)40.2+x=100
80+x=100
x =100-80
x =20
a) 45 + 15 + x = 100
60 + x = 100
x = 100 - 60
x = 40
b) 40.2 + x = 100
80 + x = 100
x = 100 - 80
x = 20
a) 45 + 15 + x = 100
60 + x = 100
x = 100 - 60
x = 40
Vậy x = 40
b) 40 . 2 + x = 100
80 + x = 100
x = 100 - 80
x = 20
Vậy x = 20
a) 45 + 15 + x = 100
60 + x = 100
x = 100 - 60
x = 40
b) 40.2 + x = 100
80 + x = 100
x = 100 - 80
x = 20
đúng thì tk nhé ♥
thanks nhiều !
Phạm Thị Thu Hiền
45+15+x=100
60+x=100
x=100-60
x=40
40.2+x=100
80+x=100
x=100-80
x=20