\(33+2x+x=48\)
\(\Rightarrow3x=15\)
\(\Rightarrow x=5.\)
Vậy \(x=5.\)
11+11+11+x+x=48-x\
33+x.1+x.1=48-x
33+x.(1+1)=48-x
33+x.2=48-x
48-x.2-x.1=33
48-x.(2-1)=33
48-x.1=33
x.1=48-33
x.1=15
tự làm tiếp nhé
33+ x + x = 48 - x
33 + 2x = 48 -x
33 = 48 - 3x
3x = 48 - 33
3x =15
vậy x = 15: 3 = 3
33 + x + x = 48 - x
=33 + 2x = 48 - x
=33 = 48 - 3x
=3x = 15
vậy x = 15 : 3 = 3