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The sum of three times a number and 7 more than the number is the same as the difference between -11 and twice the number. What is the number?
\n" ); document.write( "I have tried:
\n" ); document.write( "3x+7=-11-2x
\n" ); document.write( "3x+2x=-11-7
\n" ); document.write( "x=-18
\n" ); document.write( "This is wrong according to my instructor. The answer is actually supposed to be -3. How?
\n" ); document.write( "----------------
\n" ); document.write( "3 times the number is 3x.
\n" ); document.write( "7 more than the number is x+7.
\n" ); document.write( "----------------------------
\n" ); document.write( "3x + x+7 = -11-2x
\n" ); document.write( "4x+7 = -11-2x
\n" ); document.write( "6x = -18
\n" ); document.write( "x = -3
\n" ); document.write( "----------
\n" ); document.write( "Just some tricky wording. I don't see what that's supposed to accomplish.
\n" ); document.write( " \n" ); document.write( "