document.write( "Question 890188: 1.) the sum of a number and twice the number is 18. what is the number?
\n" ); document.write( "2.) eight times a number equals 35 more than a number. what is the number?
\n" ); document.write( "3.) three times the sum of 13 and a number is the same as 7 times the number decreased by 9. what is the number?
\n" ); document.write( "i need an equation as well as the answer please.
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Algebra.Com's Answer #538772 by rothauserc(4718)\"\" \"About 
You can put this solution on YOUR website!
1. let x be the number, then
\n" ); document.write( "x +2x = 18
\n" ); document.write( "3x + 18
\n" ); document.write( "x = 6
\n" ); document.write( "2. let x be the number
\n" ); document.write( "8x = x +35
\n" ); document.write( "7x = 35
\n" ); document.write( "x = 5
\n" ); document.write( "3. let x be the number
\n" ); document.write( "3(x+13) = 7x - 9
\n" ); document.write( "3x +39 = 7x -9
\n" ); document.write( "4x = 48
\n" ); document.write( "x = 12
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