bn tham khảo
d,0,75 - x = $\frac{1}{3}$
$\frac{3}{4}$ - x = $\frac{1}{3}$
x = $\frac{3}{4}$ - $\frac{1}{3}$
x = $\frac{5}{12}$
e,($\frac{-1}{3}$ ) . x = 0,26
($\frac{-1}{3}$ ) . x = $\frac{13}{50}$
x = $\frac{13}{50}$ -($\frac{-1}{3}$ )
x = $\frac{-11}{150}$
f,x - 2$\frac{1}{5}$ = 0,125
x - $\frac{11}{5}$ = $\frac{1}{8}$
x = $\frac{1}{8}$ + $\frac{11}{5}$
x = $\frac{93}{40}$
g,x : 18 = 1$\frac{3}{14}$
x = 1$\frac{3}{14}$ + 18
x = 1$\frac{3}{14}$
x = $\frac{269}{14}$
h,2,25 : x = $\frac{1}{4}$
$\frac{9}{4}$ : x = $\frac{1}{4}$
x = $\frac{9}{4}$ : $\frac{1}{4}$
x = 9
chúc bn hc tốt
cho mk xin hay nhất nha
