Đáp án:
Giải thích các bước giải:
$\text{(x+73):5=20+7,5x4}$
$\text{(x+73):5=50}$
$\text{x+73=50:5}$
$\text{x+73=10}$
$\text{x =10-73}$
$\text{x =-63}$
___________________
$\text{17,58x43+57x17,58}$
=$\text{17,58x(43+57)}$
=$\text{17,58x100}$
=$\text{1758}$
____________________________
$\dfrac{3}{8}$$\text{x}$=$\text{118}$
$\text{x}$=$\text{118}$:$\dfrac{3}{8}$
$\text{x}$= $\dfrac{944}{3}$
