document.write( "Question 1151048: 10x-21=7x \n" ); document.write( "

Algebra.Com's Answer #772646 by ikleyn(52814) $\"\"$ $\"About$

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document.write( "10x - 21 = 7x\r\n" );
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document.write( "    add 21 to both sides.  You will get\r\n" );
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document.write( "10x = 7x + 21\r\n" );
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document.write( "    subtract 7x from both sides.  You will get\r\n" );
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document.write( "10x - 7x = 21\r\n" );
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document.write( "3x       = 21\r\n" );
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document.write( "    divide both sides by 3.  You will get\r\n" );
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document.write( " x       = 21/3 = 7.      ANSWER\r\n" );
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\n" ); document.write( "\n" ); document.write( "If you want to learn on how to solve simple and simplest linear equations, read the lesson\r
\n" ); document.write( "\n" ); document.write( " - HOW TO solve a linear equation\r
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\n" ); document.write( "\n" ); document.write( "Happy learning (!)\r
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