Question

$5 frac{1}{4} - x = 0,1 (10 - frac{1}{2} x)$

Answer 1

$5 frac{1}{4}-x=0,1*(10- frac{1}{2}x ) \ \ 5 frac{1}{4}-x=1- frac{1}{20}x \ \ frac{1}{20}x-x=1- 5 frac{1}{4} \ \ - frac{19}{20}x=-4 frac{1}{4} \ \ x=-4 frac{1}{4}:(- frac{19}{20}) \ \ x=4 frac{9}{19}$