X+25%=2 1/3
X+25/100=7/3
X=7/3-25/100=7/3-1/4
X=25/12.
x + 25% = 21/3
x = 21/3 - 25%
x = 27/4
x = 6.75
~ đúng thì tk, ko cần ủng hộ~
x+25%=21/3
x+\(\frac{1}{4}\)=7
x=7-\(\frac{1}{4}\)
x=6\(\frac{3}{4}\)
x + 25%= 21/3
x + 1/4 = 7
x = 7 -1/4
x = 6,75