\(3-\frac{x}{2}=\frac{1}{y}\)
\(\Rightarrow\frac{6-x}{2}=\frac{1}{y}\Rightarrow\left(6-x\right)y=2\)
Ta thấy 2 = 1.2 ; 2.1; -1.-2 ; -2.-1
6 - x | 1 | -1 | 2 | -2 |
x | 5 | 7 | 4 | 8 |
y | 2 | -2 | 1 | -1 |
\(\frac{3-x}{2}=\frac{1}{y}\)
\(\Rightarrow2=y\left(3-x\right)\)
mà ta thấy :\(2=1.2=2.1=\left(-1\right)\left(-2\right)=\left(-2\right)\left(-1\right)\)
Ta có bảng:
y | 1 | 2 | -1 | -2 |
x-3 | 2 | 1 | -2 | -1 |
x | 5 | 4 | 1 | 2 |