.
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= 5.\r\n" );
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document.write( "Square both sides. You will get\r\n" );
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document.write( "7 - 3x =
, or, which is the same \r\n" );
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document.write( "7 - 3x = 25.\r\n" );
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document.write( "Add 3x to both sides. You will get\r\n" );
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document.write( "7 = 25 + 3x, or, which is the same,\r\n" );
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document.write( "25 + 3x = 7.\r\n" );
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document.write( "Distract 25 from both sides. You will get\r\n" );
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document.write( "3x = 7 - 25, or, which is the same\r\n" );
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document.write( "3x = -18.\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 =
= -6.\r\n" );
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document.write( "Answer. x = -6.\r\n" );
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document.write( "Check.
=
=
= 5. Checked !\r\n" );
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