document.write( "Question 1165064: The expression 3[x-2(x-7)] simplifies to the form ax + b. State a. \n" ); document.write( "
Algebra.Com's Answer #789518 by Theo(13342)\"\" \"About 
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expression is 3 * (x - 2 * (x-7))
\n" ); document.write( "2 * (x - 7) simplifies to 2 * x - 14
\n" ); document.write( "equation becomes:
\n" ); document.write( "3 * (x - 2 * x + 14)
\n" ); document.write( "this simplifies to 3 * x - 3 * 2 * x + 3 * 14
\n" ); document.write( "simplify to get:
\n" ); document.write( "3 * x - 6 * x + 42
\n" ); document.write( "combine like terms to get:
\n" ); document.write( "-3 * x + 42.\r
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\n" ); document.write( "\n" ); document.write( "to test if this is correct, let x be equal to any random value.
\n" ); document.write( "i chose -55.\r
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\n" ); document.write( "\n" ); document.write( "with the final expression, this becomes -3 * x + 42 which becomes -3 * -55 +42 which is equal to 207.\r
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\n" ); document.write( "\n" ); document.write( "with the initial expression, this becomes 3 * (-55 - 2 * (-55 - 7)) which becomes 3 * (-55 - 2 * -62) which becomes 3 * (-55 + 124) which becomes 3 * 69 which is equal to 207.\r
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\n" ); document.write( "\n" ); document.write( "since both expressions come out with the same value, then the simplified expression is good.\r
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\n" ); document.write( "\n" ); document.write( "your final expression is -3 * x + 42, so your solution is that a = -3.\r
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