document.write( "Question 807912: Solve
\n" ); document.write( "√ (3x+4) + x = 12\r
\n" ); document.write( "\n" ); document.write( "Can you please help me out? Thanks so much in advance :) \n" ); document.write( "

Algebra.Com's Answer #486618 by MathLover1(20850) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( " $\"sqrt%283x%2B4%29+%2B+x++=+12\"$ ......move $\"x\"$ to the right\r
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\n" ); document.write( "\n" ); document.write( " $\"sqrt%283x%2B4%29++=+12-x\"$ ...square both sides\r
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\n" ); document.write( "\n" ); document.write( " $\"%28sqrt%283x%2B4%29%29%5E2++=+%2812-x%29%5E2\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"3x%2B4++=+12%5E2-24x%2Bx%5E2\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"0=+144-24x-3x-4%2Bx%5E2\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x%5E2-27x%2B140=0\"$ .......factor completely, write $\"-27x\"$ as $\"-20x-7x\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x%5E2-20x-7x%2B140=0\"$ ....group\r
\n" ); document.write( "\n" ); document.write( " $\"%28x%5E2-20x%29-%287x-140%29=0\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x%28x-20%29-7%28x-20%29=0\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"%28x-7%29%28x-20%29=0\"$ \r
\n" ); document.write( "\n" ); document.write( "solutions:\r
\n" ); document.write( "\n" ); document.write( "if $\"%28x-7%29=0\"$ => $\"x=7\"$ \r
\n" ); document.write( "\n" ); document.write( "if $\"%28x-20%29=0\"$ => $\"x=20\"$ \r
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