Answer:
Step-by-step explanation:
Here you go mate
Use PEMDAS
Parenthesis,Exponent,Multiplication,Division,Addition,Subtraction
Step 1
4n-9=2(5+2n)  Equation/Question
Step 2
4n-9=2(5+2n)  Remove parenthesis
4n-9=4n+10
Step 3
4n-9=4n+10  Subtract 4n to sides
-9=10
Step 4
-9=10  Add 9
0=19
Answer
No solutions
Hope this helps