Ta có : y:7=18 + 7
y:7=25
y=25x7
y=175
y: 7 - 18 = 7
=> y: 7 = 25
=> y = 25.7 = 175
Tíc nhé!
y : 7 -18 = 7
y = ( 7 + 18 ) x 7
y = 25 x 7
y = 175
y : 7 - 18 = 7
=> y : 7 = 7 + 18
=> y : 7 = 25
=> y = 25 x 7
=> y = 175
y : 7 - 18 = 7
y : 7 = 7 + 18
y : 7 = 25
y = 25 x 7
y = 175