Question

5x + 1/2= 2/3 

1/5-1/2+2x=1/2

Giúp mình với

 

 

Answer 1

\(5x+\frac{1}{2}=\frac{2}{3}\)

\(5x=\frac{2}{3}-\frac{1}{2}\)

\(5x=\frac{1}{6}\)

\(x=\frac{1}{6}:5\)

\(x=\frac{1}{30}\)

\(\Rightarrow x=\frac{1}{30}\)

Answer 2

Câu 2 lấy msc là 10 là ra

Answer 3

\(5x+\frac{1}{2}=\frac{2}{3}\)

\(5x=\frac{2}{3}-\frac{1}{2}\)

\(5x=\frac{1}{6}\)

\(x=\frac{1}{6}:5\)

\(x=\frac{1}{30}\)

Answer 4

\(\frac{1}{5}-\frac{1}{2}+2x=\frac{1}{2}\)

\(\frac{1}{2}+2x=\frac{1}{5}-\frac{1}{2}\)

\(\frac{1}{2}+2x=\frac{2}{10}-\frac{5}{10}\)

\(\frac{1}{2}+2x=\frac{-3}{10}\)

\(2x=\frac{-3}{10}-\frac{1}{2}\)

\(2x=\frac{-3}{10}-\frac{5}{10}\)

\(2x=\frac{-8}{10}\)

\(x=\frac{-8}{10}:2\)

\(x=\frac{-8}{10}.\frac{1}{2}\)

\(x=\frac{-4}{10}\)

\(x=\frac{-2}{5}\)

Answer 5

Câu 2 cậu sai rồi nha :v

\(\frac{1}{5}-\frac{1}{2}+2x=\frac{1}{2}\)

\(\frac{2}{10}-\frac{5}{10}+2x=\frac{1}{2}\)

\(\frac{-3}{10}=\frac{1}{2}\)

\(2x-\frac{3}{10}=\frac{1}{2}\)

\(2x=\frac{1}{2}+\frac{3}{10}\)

\(2x=\frac{4}{5}\)

\(x=\frac{4}{5}:2\)

\(x=\frac{2}{5}\)

\(\Rightarrow x=\frac{2}{5}\)

Answer 6

sp

Mơn cậu đã nhắc nhé :v

Answer 7

5X + 1/2=2/3

5X        =2/3 + 1/2

5X         =4/6 + 3/6

5X         =7/6

X           =7/6:5

X           =7/30