\(\frac{6}{x}+\frac{1}{2}=2\)
\(\Rightarrow\frac{6}{x}=2-\frac{1}{2}\)
\(\Rightarrow\frac{6}{x}=\frac{3}{2}\Rightarrow6\times2=3\times x\Rightarrow12=3\times x\)
\(\Rightarrow x=12\div3=4\)
cách làm lớp 6:
\(\frac{6}{x}=2-\frac{1}{2}\)
\(\frac{6}{x}=\frac{2}{1}-\frac{1}{2}\)
\(\frac{6}{x}=\frac{3}{2}\)
6.2=3.x
12=3.x
=>3.x=12
x=12:3
x=4
\(\frac{6}{x}+\frac{1}{2}=2
\)
\(\frac{6}{x}=2-\frac{1}{2}\)
\(\frac{6}{x}=\frac{4}{2}-\frac{1}{2}\)
\(\frac{6}{x}=\frac{3}{2}\)
\(\Leftrightarrow3.x=6.2\)
\(\Leftrightarrow3x=12\)
\(\Leftrightarrow x=12:3\)
\(\Leftrightarrow x=4\)
Vậy x cần tìm là 4
\(\frac{6}{x}+\frac{1}{2}=2\)
\(x=2-\frac{1}{2}\)
\(Tựtính\)
\(x=\frac{3}{2}\)
Phân tích \(\frac{3}{2}=6x2-3xx-12=3\cdot x\)
\(x\cdot3=12\)
\(x=12:3\)
\(x=4\)
~Hok tốt~
