Question

Tìm x:

x/3 - 1 = 4/5

các bn chỉ mk cách lm luôn nhé. cảm ơn

Answer 1

\(\frac{X}{3}-1=\frac{4}{5}\)

5X-15=12

5X=27

X=\(\frac{27}{5}\)

Answer 2

x/3    = 4/5 +1

x/3    = 9/5

x       = 9/5*3

x       = 27/5

Answer 3

\(\frac{x}{3}-1=\frac{4}{5}\)

\(\Leftrightarrow\frac{x}{3}=\frac{4}{5}+1=\frac{9}{5}\)

\(\Leftrightarrow x=\frac{3.9}{5}=\frac{27}{5}=5,4\)

Vậy x = 5,4

Answer 4

\(\frac{x}{3}-1=\frac{4}{5}\)

\(\frac{x}{3}=\frac{4}{5}+1\)

\(x\div3=\frac{9}{5}\)

\(x=\frac{9}{5}\times3\)

\(x=\frac{27}{5}\)

\(x=5,4\)

Học tốt~