document.write( "Question 56919: question on surds\r
\n" ); document.write( "\n" ); document.write( "square route 5 (X)times square route 10\r
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\n" ); document.write( "\n" ); document.write( "solve the following for x\r
\n" ); document.write( "\n" ); document.write( "15x - 9 = 3x + 21\r
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\n" ); document.write( "\n" ); document.write( "2x
\n" ); document.write( "_ = 6\r
\n" ); document.write( "\n" ); document.write( "5 \n" ); document.write( "

Algebra.Com's Answer #38658 by tutorcecilia(2152) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( " $\"%28+%28sqrt%2850%29%29+%29\"$
\n" ); document.write( " $\"%28+%28sqrt%282%2A25%29%29+%29\"$
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\n" ); document.write( ".
\n" ); document.write( "15x - 9 = 3x + 21
\n" ); document.write( "15x-3x-9=3x-3x+21
\n" ); document.write( "12x-9=21
\n" ); document.write( "12x-9+9=21+9
\n" ); document.write( "12x=30
\n" ); document.write( "x=30/12
\n" ); document.write( "x=5/2
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\n" ); document.write( "Check by plugging (x=5/2) back into the original equation]
\n" ); document.write( ".\r
\n" ); document.write( "\n" ); document.write( "2x/5=6
\n" ); document.write( "(5)(2x/5)=(5)(6)
\n" ); document.write( "2x=30
\n" ); document.write( "2x/2=30/2
\n" ); document.write( "x=15
\n" ); document.write( ".
\n" ); document.write( "Check by plugging (x=15) back into the original equation]\r
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