Question

tìm x : biết  (x-3)*5=21

Answer 1

\(\left(x-3\right)x5=21\)

\(x-3=\frac{21}{5}\)

\(x=\frac{21}{5}+3\)

\(x=\frac{36}{5}\)

\(tk\)\(cho\)\(mk\)\(nha!\)\(cảm\)\(ơn\)\(@@@@@@@@@@@@@@@@\)

Answer 2

\(\left(x-3\right)=\frac{21}{5}\)

\(x=\frac{21}{5}+3\)

\(x=\frac{36}{5}\)