x/4=6/8 3x+1/3=5/2 x-3-1/7=0
x.8=4.6=24 3x=5/2-1/3=13/6 x-3=0+1/7=1/7
x=24:8=3 x=13/6:3=13/18 x=1/7+3=22/7
\(\frac{x}{4}=\frac{6}{8}\Rightarrow x\times8=4.6\Rightarrow x=\frac{4.6}{8}3\)
Vậy x=3
3x\(+\frac{1}{3}=\frac{5}{2}\)
3x =\(\frac{5}{2}-\frac{1}{3}\)
3x =\(\frac{13}{6}\)
x =\(\frac{13}{6}:3=\frac{13}{6}.\frac{1}{3}\)
x =\(\frac{13}{18}\)
x-3-\(\frac{1}{7}=0\)
x-3 =0+\(\frac{1}{7}\)
x-3 =\(\frac{1}{7}\)
x =\(\frac{1}{7}+3\)
x =3\(\frac{1}{7}\)
\(\frac{x}{4}=\frac{6}{8}\)\(\Rightarrow x.8=6\times4\)
\(\Rightarrow x.8=24\)
\(\Rightarrow x=24:8=3\)
\(\frac{x}{4}=\frac{6}{8}\)
\(\Rightarrow\)8x=4.6
x=24/8
x=3
vậy x=3
\(3x+\frac{1}{3}=\frac{5}{2}\)
\(\Rightarrow3x=\frac{5}{2}-\frac{1}{3}\)
\(\Rightarrow3x=\frac{1}{2}\)
\(\Rightarrow x=\frac{1}{2}:3=\frac{1}{6}\)
3x+\(\frac{1}{3}=\frac{5}{2}\)
3x=\(\frac{5}{2}-\frac{1}{3}\)
3x=\(\frac{15}{6}-\frac{2}{6}\)
3x\(=\frac{13}{6}\)
x=\(\frac{13}{6}\div3\)
x=\(\frac{13}{6\times3}\)
x=\(\frac{13}{18}\)
vậy x=\(\frac{13}{18}\)
câu 1: x/4=6/8
nên x:4=6:8
x:4=3/4
x=3/4 x 4
x=3
vậy x=3
câu 2: 3.x+1/3=5/2
3.x=5/2-1/3
3.x=13/6
x =13/6:3
x=13/18
vậy x = 13/18
câu 3: x-3-1/7=0
x-3=0+1/7
x-3=1/7
x=1/7+3
x=22/7
vậy x = 22/7
x-3-\(\frac{1}{7}\)=0
\(\Rightarrow\) x=0+\(\frac{1}{7}+3\)
x=\(3\frac{1}{7}\)
x=\(\frac{22}{7}\)
vậy x=\(\frac{22}{7}\)
