solve the equation please

Answer:
Step-by-step explanation:
The given equation is expressed as
√2x + 9 - √x + 4 = 0
Adding √x + 4 to the left hand side and the right hand side of equation, it becomes
√2x + 9 = √x + 4
Squaring the left hand side and the right hand side of equation, it becomes
2x + 9 = x + 4
Subtracting x from the left hand side and the right hand side of equation, it becomes
2x - x + 9 = 4
x + 9 = 4
Subtracting 9 from the left hand side and the right hand side of equation, it becomes
x = 4 - 9
x = - 5