Trả lời :
\(x+3\frac{1}{4}+x=24\frac{1}{4}\)
\(x+\frac{13}{4}+x=\frac{97}{4}\)
\(x\text{ x 2 }+\frac{13}{4}=\frac{97}{4}\)
\(x\text{ x 2 }=\frac{97}{4}-\frac{13}{4}\)
\(x\text{ x 2 }=\frac{84}{4}=21\)
\(x=21:2\)
\(x=10,5\)
\(x+3\frac{1}{4}+x=24\frac{1}{4}\)
\(\Rightarrow2x+\frac{13}{4}=\frac{97}{4}\)
\(\Rightarrow2x=21\)
\(\Rightarrow x=\frac{21}{2}\)
\(x+3\frac{1}{4}+x=24\frac{1}{4}\)
\(2\times x+\frac{13}{4}=\frac{97}{4}\)
\(2\times x=\frac{97}{4}-\frac{13}{4}\)
\(2\times x=21\)
\(x=21:2\)
\(x=10,5\)
\(x+3\frac{1}{4}+x=24\frac{1}{4}\)
\(x+\frac{13}{4}+x=\frac{97}{4}\)
\(x\times2+\frac{13}{4}=\frac{97}{4}\)
\(x\times2=\frac{97}{4}+\frac{13}{4}\)
\(x\times2=\frac{55}{2}\)
\(x=\frac{55}{2}\div2\)
\(x=\frac{55}{4}\)
\(X+\frac{31}{4}+X=\frac{241}{4}\)
\(\Rightarrow X\times2+\frac{31}{4}=\frac{241}{4}\)
\(\Leftrightarrow X\times2=\frac{241}{4}-\frac{31}{4}=\frac{210}{4}=52,5\)
\(\Leftrightarrow X=52,5\div2\)
\(\Leftrightarrow X=26,25\)
