document.write( "Question 500701: A second number is 6 less than a first number. A third number is twice the first number. If the sum of the three numbers is 306, find the numbers. \n" ); document.write( "

Algebra.Com's Answer #338230 by oberobic(2304) $\"\"$ $\"About$

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x = first number
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\n" ); document.write( "y = second number is 6 less than x
\n" ); document.write( "y = x-6
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\n" ); document.write( "z = third number is 2 x
\n" ); document.write( "z = 2*x
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\n" ); document.write( "x + y + z = 306
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\n" ); document.write( "Substitute
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\n" ); document.write( "x + (x-6) + 2x = 306
\n" ); document.write( "4x = 312
\n" ); document.write( "x = 78
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\n" ); document.write( "y = 78 -6
\n" ); document.write( "y = 72
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\n" ); document.write( "z = 2x
\n" ); document.write( "z = 2*78
\n" ); document.write( "z = 156
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\n" ); document.write( "Always check your work.
\n" ); document.write( "78+72+156 = ??
\n" ); document.write( " = 306
\n" ); document.write( "Correct.
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\n" ); document.write( "Answer: The three numbers are 78, 72, and 156.
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\n" ); document.write( "Done.
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