Question

 tìm x thõa mãn: 5+x/8=14/16

Answer 1

5 + x/8 = 14/16

x/8 = 14/16 - 5 

x/8 = -33/8

=> x = -33

Answer 2

\(pt\Leftrightarrow\frac{10+2x}{16}=\frac{14}{16}\Leftrightarrow10+2x=14\Leftrightarrow2x=14-10=4\)

\(\Leftrightarrow x=2\)

Answer 3

\(5+x:8=14:16\)

\(\Leftrightarrow5+x:8=\frac{7}{8}\)

\(\Leftrightarrow x:8=\frac{7}{8}-5=\frac{-33}{8}\)

\(\Leftrightarrow x=-\frac{33}{8}\cdot8=-33\)

Answer 4

5 + x/8 = 14/16

=> 5 + x/8 = 7/8

<=> x/8 = 7/8 - 5

=> x/8 = -33/8

<=> x = -33/8 x 8

=> x = -33