document.write( "Question 959537: the sum of 50 and thrice a number is 155. what is the number? \n" ); document.write( "
Algebra.Com's Answer #586496 by psbhowmick(878)\"\" \"About 
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Let the unknown number be x.\r
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\n" ); document.write( "\n" ); document.write( "50 + 3x = 155
\n" ); document.write( "3x = 155 - 50 = 105
\n" ); document.write( "x = 105/3 = 35\r
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\n" ); document.write( "\n" ); document.write( "So the unknown number is 35.
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