Đáp án`+`Giải thích các bước giải:

`g, {(x/2 - y/3 = 1),(5x - 8y = 3):}`

`<=> {(5x - (10y)/3 = 10),(5x - 8y = 3):}`

`<=> {((14)/3 y = 7),(5x- 8 y = 3):}`

`<=> {(y =  3/2),(5x - 8 . 3/2 = 3):}`

`<=> {(y = 3/2),(5x=  15):}`

`<=> {(y = 3/2),(x=  3):}`

Vậy `(x;y) = (3;3/2)`

`h,` $\begin{cases} 0,3x + 0,5y = 3\\1,5x - 2y = 1,5\end{cases}$

`<=> {(x + 5/3y = 10),(x - 4/3y = 1):}`

`<=> {(3y = 9),(x + 5/3y = 10):}`

`<=> {(y = 3),(x + 5/3 . 3 = 10):}`

`<=> {(y = 3),(x = 5):}`

Vậy `(x;y) = (5;3)`

`i, {(\sqrt{3}x - \sqrt{2}y = 1),(\sqrt{2}x + 3\sqrt{3}y = 4\sqrt{6}):}`

`<=> {(\sqrt{6}x - 2y=  \sqrt{2}),(\sqrt{6}x + 9y = 12\sqrt{2}):}`

`<=> {(11y = 11\sqrt{2}),(\sqrt{3}x - \sqrt{2}y = 1):}`

`<=> {(y = \sqrt{2}),(\sqrt{3}x -2 = 1):}`

`<=> {(y = \sqrt{2}),(x=  \sqrt{3}):}`

Vậy `(x;y) = (\sqrt{3};\sqrt{2})`

`***`sharksosad