a) x = 100 - 6
x = 94
b) x = 20 + 26 - 9
x = 46 - 9
x = 37 - 18
x = 19
a)x+6=100
x=100-6
x=94
b)18+x=20+26-9
18+x=46-9
18+x=37
x=37-18
x=19
a ) x + 6 =100
x = 100 -6
x = 94
b ) 18 + x = 20 + 26 -9
18 + x = 37
x = 37 -18
x = 19
tick nhé
a)x+6=100
x=100-6
x=94
b)18+x=20+26-9
18+x=46-9
18+x=37
x=37-18
x=19