``` d) {4x - y + 2 = 3 {x + 2 | y + 2 = 3 e) √(x + 2√y - 1) = 5 4√x - √y - 1 = 2 g) {2(x + y) + √(x + 1) = 4 {(x + y) - 3/√(x + 1) = -5 h) {2/x + 1/y = -2 {6 2 = -1 f) {3(x + 1) + 2(x + 2y) = 4 {4(x + 1) - (x + 2y) = 9 k) {2x + 3/y - 1 = 5 {1 {4x - - - - = 3 ```

help cau f va g vs aj
----- Nội dung ảnh -----
```
d)
{4x - y + 2 = 3
{x + 2 | y + 2 = 3

e)
√(x + 2√y - 1) = 5
4√x - √y - 1 = 2

g)
{2(x + y) + √(x + 1) = 4
{(x + y) - 3/√(x + 1) = -5

h)
{2/x + 1/y = -2
{6 2 = -1

f)
{3(x + 1) + 2(x + 2y) = 4
{4(x + 1) - (x + 2y) = 9

k)
{2x + 3/y - 1 = 5
{1
{4x - - - - = 3
```