Đáp án:
Giải thích các bước giải:
d. $\frac{3x}{2}$ - $\frac{11}{4}$ = $\frac{-7}{8}$.$\frac{32}{56}$
$\frac{3x}{2}$ - $\frac{11}{4}$ = $\frac{-1}{1}$.$\frac{4}{8}$
$\frac{3x}{2}$ - $\frac{11}{4}$ = $\frac{-4}{8}$
$\frac{3x}{2}$ - $\frac{11}{4}$ = $\frac{-1}{2}$
$\frac{3x}{2}$ = $\frac{-1}{2}$ + $\frac{11}{4}$
$\frac{3x}{2}$ = $\frac{-2}{4}$ + $\frac{11}{4}$
$\frac{3x}{2}$ = $\frac{9}{4}$
⇒ 4(3x) = 2.9
12x = 18
x = 18 : 12
x = $\frac{3}{2}$
