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`_` `_` `_` `_` `_`
`a,` `3/5x -` `1/3 = 1/4`
`=>` `3/5x =` `1/4 + 1/3`
`=>` `3/5x = 7/12`
`=>`` x =` `7/12 : 3/5`
`=>` `x = 35/36`
`b, 1/4` `+ 3/4 -` `x = -2`
`=>` `1 - x` `= -2`
`=>` `x =` `1 + 3`
`=>` `x = 4`
`c,` `1/2x +` `150%x = 2022`
`=>` `(1/2` `+ 150%)``x = 2022`
`=>` `2x = 2022`
`=>` `x =` `2022 : 2`
`=>` `x = 1011`
`d,` `(2x +` `1/2) (``2x - 3``) = 0`
`=>` $\left[\begin{matrix} 2x + \dfrac{1}{2} = 0\\ 2x - 3 = 0\end{matrix}\right.$
`=>` $\left[\begin{matrix} 2x = \dfrac{-1}{2}\\ 2x = 3\end{matrix}\right.$
`=>` $\left[\begin{matrix} x = \dfrac{-1}{4}\\ x = \dfrac{3}{2}\end{matrix}\right.$
`e,` `(x + 1)/3 = -3/9`
`=>` `(x + 1)/3 = -1/3`
`=>` `x +` `1 = -1`
`=>` `x =` `-1 - 1`
`=>` `x = -2`
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