Question

x/13 + 15/26 = 23/26

Answer 1

\(\frac{x}{13}+\frac{15}{26}=\frac{23}{26}\)

\(\Leftrightarrow\frac{x}{13}=\frac{8}{26}\)

\(\Leftrightarrow\frac{x}{13}=\frac{4}{13}\)

\(\Leftrightarrow x=4\)

Answer 2

\(\frac{x}{13}+\frac{15}{26}=\frac{23}{26}\)

\(\Leftrightarrow\frac{x}{13}=\frac{23}{26}-\frac{15}{26}\)

\(\Leftrightarrow\frac{x}{13}=\frac{8}{26}\)

\(\Leftrightarrow\frac{2x}{26}=\frac{8}{26}\)

\(\Leftrightarrow2x=8\)

\(\Leftrightarrow x=8:2\)

\(\Leftrightarrow x=4\)

Answer 3

Ko ghi lại đề bài:

\(=>\frac{x}{13}=\frac{8}{26}\)

\(=>\frac{x}{13}=\frac{4}{13}\)

\(=>x=4\)

Answer 4

x/13 + 15/26 = 23/26

x/13 = 23/26 - 15/26

x/13 = 8/26

x /13 = 4/13

x = 4