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

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

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

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

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