SOLUTION: I worked this out sqrt(3x+3)- 9 = 0; I came up with x=2 and checking the problem by plugging 2 in, I came up with 81 not = to 9. Can someone advise please?

Question 51295This question is from textbook
: I worked this out sqrt(3x+3)- 9 = 0; I came up with x=2 and checking the problem by plugging 2 in, I came up with 81 not = to 9. Can someone advise please? This question is from textbook

Found 2 solutions by Earlsdon, dagwoode:
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Solve:
Add 9 to both sides of the equation.
Square both sides.
Subtract 3 from both sides.
Divide both sides by 3.
Check:

Answer by dagwoode(1) (Show Source): You can put this solution on YOUR website!

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