document.write( "Question 831967: four times a number minus twice another number is -16. the sum of the two numbers is -1. find the numbers? \n" ); document.write( "
Algebra.Com's Answer #501752 by JulietG(1812)\"\" \"About 
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Let A and B be the numbers.
\n" ); document.write( "Here's what we're told:
\n" ); document.write( "4A - 2B = -16
\n" ); document.write( "A + B = -1
\n" ); document.write( "In the first equation, divide each side by 2.
\n" ); document.write( "2A - B = -8
\n" ); document.write( "Add B to each side
\n" ); document.write( "2A = -8 + B
\n" ); document.write( "Add 8 to each side
\n" ); document.write( "2A + 8 = B
\n" ); document.write( "Now substitute that value into the other equation.
\n" ); document.write( "A + (2A+8) = -1
\n" ); document.write( "Add the As
\n" ); document.write( "3A + 8 = -1
\n" ); document.write( "Subtract 8 from each side
\n" ); document.write( "3A = -9
\n" ); document.write( "Divide each side by 3
\n" ); document.write( "A = -3
\n" ); document.write( "If A is -3, then B must be 2 (the sum of the two numbers is -1.)
\n" ); document.write( ".
\n" ); document.write( "Let's put it into the question to make certain:
\n" ); document.write( "(4 * -3) - (2 * 2) = -16
\n" ); document.write( "-12 - 4 does indeed equal -16
\n" ); document.write( "Success! \n" ); document.write( "
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