How do you solve #sqrta+11=21# and check your solution?
Square both sides
To check the solution substitute this value (
So the solution is correct
The answer is
To get "a" by itself you want to subtract 11 from both sides:
So now the equation is:
Since you want to get "a" by itself, you want to now square both sides of the equation to get rid of the square root:
This is equal to:
If you have any questions, feel free to comment!