Question

Tìm x biết 2x - 1/4 = 3/8

Answer 1

2x - 1/4 = 3/8

<=> 2x = 3/8 + 1/4

<=> 2x = 5/8

=> x = 5/8/2

=> x= 5/16

Vậy x= 5/16

Toán 4 bạn lại ghi toán 10

Answer 2

\(2x-\frac{1}{4}=\frac{3}{8}\)

\(\Rightarrow2x=\frac{3}{8}+\frac{1}{4}\)

\(\Rightarrow2x=\frac{5}{8}\)

\(\Rightarrow x=\frac{5}{15}\approx0,3125\)

Answer 3

\(2x-\frac{1}{4}=\frac{3}{8}\\ \Leftrightarrow2x=\frac{3}{8}+\frac{1}{4}\\ \Leftrightarrow x=\frac{5}{8}:2=\frac{5}{16}\)

Answer 4

2x - \(\frac{1}{4}\) = \(\frac{3}{8}\)

2x = \(\frac{3}{8}+\frac{1}{4}\)

2x = \(\frac{5}{8}\)

x = \(\frac{5}{8}:\:2\)

⇒x = \(\frac{5}{16}\)

Vậy x = \(\frac{5}{16}\)