document.write( "Question 200088: Three times the opposite of a number is 40 greater than 5 times number. What is the number? \n" ); document.write( "

Algebra.Com's Answer #150423 by orca(409) $\"\"$ $\"About$

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Suppose the unknown number is x.
\n" ); document.write( "Then the opposite of the number is -x.
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\n" ); document.write( "Three time the opposite of the unknown number is -3x.
\n" ); document.write( "Five times the unknown number is 5x.
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\n" ); document.write( "As their difference is 40, we have
\n" ); document.write( "-3x - 5x = 40
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\n" ); document.write( "Solving for x, we have
\n" ); document.write( "-8x = 40
\n" ); document.write( "x = -5
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\n" ); document.write( "So the number is -5.
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