đè là tìm X mà sao lại có cả Y nhỉ?
a, y + \(\frac{3}{8}\)= \(\frac{4}{3}\)
y = \(\frac{4}{3}-\frac{3}{8}=\frac{32}{24}-\frac{9}{24}\)
y = 23/24
b, y x 1/9 = 21/8
y = 21/8 : 1/9
y = 189/8
c, x - 4/5 = 7/6
x = 7/6 + 4/5
x = 59/30
d, x : 8/3 = 5
x = 5 x 8/3
x = 40/3
a) y+3/8=4/3
y=4/3-3/8
y=22/24
b) yx1/9=21/8
y=21/8:1/9
y=189/8
c)x-4/5=7/6
x=7/6+4/5
x=59/30
d) x:8/3=5
x=5x8/3
x=40/3