document.write( "Question 376982: i am thinking of number i multiply it by 5 and add 77 i get the same answer if i multiply by 8 and subtract 7 what is my number? \n" ); document.write( "
Algebra.Com's Answer #268045 by bostonmathtutor(8)\"\" \"About 
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First, we set up the equality denoting this mystery number as X:\r
\n" ); document.write( "\n" ); document.write( "5X + 77 = 8X - 7\r
\n" ); document.write( "\n" ); document.write( "Combine like terms:\r
\n" ); document.write( "\n" ); document.write( "84 = 3X\r
\n" ); document.write( "\n" ); document.write( "28 = X
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