a) x-3/5=2/3+3/5
x-3/5=19/15
x =19/15+3/5
x =28/15
b) x * 6/8=15/9-2/3
x* 6/8=1
x = 1: 6/8
x =4/3
Chuẩn ko cần chỉnh nha
a, x-3/5=2/3+3/5
x-3/5=10/15+9/15
x-3/5= 19/15
x = 19/15+3/5
x =19/15+9/15
x = 28/15
b, x*6/8=15/9-2/3
x*6/8=15/9-6/9
x*6/8= 9/9
x*6/8=1
x =1:6/8
x =1*8/6
x = 8/6
x = 4/3