a) x+25,6= 76,5:1,8
x + 25,6 = 42,5
x = 42,5 - 25,6
x = 16.9
b) 190 : x = 22,96 - 15,36
190 : x = 7,6
x = 190 : 7,6
x = 25
nha bạn
\(x+25,6=76,5\div1,8\)
\(x+25,6=42,5\)
\(x=42,5-25,6\)
\(x=16,9\)
\(190\div x=22,96-15,36\)
\(190\div x=7,6\)
\(x=190\div7,6\)
\(x=25\)
a) x + 25.6 = 76.5 : 1.8
x + 25.6 = 42.5
x = 42.5 - 25.6
x = 16.9
b ) 190 : x = 22.96 - 15.36
190 : x = 7.6
x = 190 : 7.6
x = 25
Hok tốt!!!!!!!!!