Question

cách giải x+ 3 phần 10 = âm17 phần 20

Answer 1

\(\dfrac{x+3}{10}=-\dfrac{17}{20}=>x+3=-\dfrac{17.10}{20}=-8.5=>x=-8.5-3=-11.5\)

Answer 2

\(\dfrac{x+3}{10}=-\dfrac{17}{20}\)

\(\Rightarrow\) \(x+3=-\dfrac{17.10}{20}=-8.5\)

\(\Rightarrow\)\(x=-8.5-3=-11.5\)