document.write( "Question 447336: how do you prove your solution is correct in a linear equaton?
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Algebra.Com's Answer #307959 by algebrahouse.com(1659)\"\" \"About 
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how do you prove your solution is correct in a linear equaton?\r
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\n" ); document.write( "\n" ); document.write( "Substitute the solution back into the original equation. If you get a
\n" ); document.write( "true statement, then you do have the correct solution.\r
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\n" ); document.write( "\n" ); document.write( "Example:
\n" ); document.write( "x + 5 = 7
\n" ); document.write( "x = 2 {subtracted 5 from both sides}\r
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\n" ); document.write( "\n" ); document.write( "Substitute back in:
\n" ); document.write( "x + 5 = 7
\n" ); document.write( "2 + 5 = 7 is a true statement, therefore 2 is the correct solution for x.
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