Question

x+31/10 =14,5+12/10

Answer 1

\(x+\frac{31}{10}=14,5+\frac{12}{10}\)

\(x+\frac{31}{10}=\frac{29}{2}+\frac{12}{10}\)

\(x+\frac{31}{10}=\frac{157}{10}\)

\(x=\frac{157}{10}-\frac{31}{10}\)

\(x=\frac{63}{5}\)

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Answer 2

\(x+\frac{31}{10}=14,5+\frac{12}{10}\)

\(\Rightarrow x+\frac{31}{10}=\frac{157}{10}\)

\(\Rightarrow x=\frac{157}{10}-\frac{31}{10}\)

\(\Rightarrow x=\frac{63}{5}\)

Vậy  \(x=\frac{63}{5}\)

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Answer 3

x+31/10=14,5+12/10

x+31/10=29/2 + 12 /10

x+31/10=145/10+12/10

x+31/10=157/10

x=157/10-31/10

x=63/5

Vậy x=63/5

Answer 4

x + \(\frac{31}{10}\) =  \(14,5+\frac{12}{10}\)

\(\Leftrightarrow\)x + 3,1 = 14,5 + 1,2

\(\Leftrightarrow\)x = 14,5 + 1,2 - 3,1

\(\Leftrightarrow\)x = 12,6

Vậy x = 12,6

Answer 5

x+31/10=14,5+12/10

x+31/10=29/2+12/10

x+31/10=145/10+12/10

x+31/10=157/10

x           = 157/10-31/10

x           =63/5

Ủng hộ mk nha mn

Answer 6

x+31/10=14,5+12/10

x+31/10=29/2+12/10

x+31/10=157/10

x=157/10-31/10

x=63/5

Vậy x=63/5

Answer 7

x+\(\dfrac{31}{10}\)=14,5 +\(\dfrac{6}{5}\)

x+\(\dfrac{31}{10}\)=15,7

x=15,7 - \(\dfrac{31}{10}\)

x=12,6