Trl :
a , x - 7,5 = 3,42
x = 3,42 + 7,5
x = 10,92
b ,x - 6,57 = 8,54 + 15,36
x - 6,57 = 23,9
x = 23,9 + 6,57
x = 30,47
Hok tốt ~_~
a, x- 7,5=3,42 x = 3,42+7,5 x = 10,92 b, x-6,57=8,54+15,36 x-6,57= 23,90 x = 23,90+6,57 x= 30,47
a, x - 7,5 = 3,42
x = 3,42 + 7,5
x = 10, 92
b, x - 6,57 = 8,54 + 15,36
x - 6,57 = 23,9
x = 23,9 + 6,57
x = 30,47
Hok tốt, mik nha
a,x-7,5=3,42
x=3,42+7,5
x=10,92
b;x-6,57=8,54+15,36
x- 6,57=23,9
x=23,9+6,57
x=30,47
x - 7,5 = 3,42
x = 3,42 + 7,5
x = 10,92
x - 6,57= 8,54 +15,36
x- 6,57 = 23,9
x =23,9 + 6,57
x = 30,47