document.write( "Question 51295This question is from textbook
\n" ); document.write( ": 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? \n" ); document.write( "

Algebra.Com's Answer #34229 by Earlsdon(6294) $\"\"$ $\"About$

You can put this solution on YOUR website!
Solve:
\n" ); document.write( " $\"sqrt%283x%2B3%29-9+=+0\"$ Add 9 to both sides of the equation.
\n" ); document.write( " $\"sqrt%283x%2B3%29+=+9\"$ Square both sides.
\n" ); document.write( " $\"3x%2B3+=+81\"$ Subtract 3 from both sides.
\n" ); document.write( " $\"3x+=+78\"$ Divide both sides by 3.
\n" ); document.write( " $\"x+=+26\"$ Check:
\n" ); document.write( " $\"sqrt%283%2826%29%2B3%29-9+=+0\"$
\n" ); document.write( " $\"sqrt%2878%2B3%29-9+=+0\"$
\n" ); document.write( " $\"sqrt%2881%29-9+=+0\"$
\n" ); document.write( " $\"9-9+=+0\"$
\n" ); document.write( " $\"0+=+0\"$ \n" ); document.write( "

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