document.write( "Question 573019: find a number such that the sum of seven times the number and five times the number is 84. \n" ); document.write( "
Algebra.Com's Answer #368665 by mathsmiles(68)\"\" \"About 
You can put this solution on YOUR website!
This problem is about converting words into numbers. Let's take one part at a time.\r
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\n" ); document.write( "\n" ); document.write( "We want the sum of 7 times the number and 5 times the number to give 84
\n" ); document.write( "Let's make the number X.\r
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\n" ); document.write( "\n" ); document.write( "7X + 5X = 84 Does this answer the original problem? Read it and see.\r
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\n" ); document.write( "\n" ); document.write( "Now let's solve:
\n" ); document.write( "Combining X terms:
\n" ); document.write( "7X + 5X = 84
\n" ); document.write( "12X = 84
\n" ); document.write( "Divide both sides by 12:
\n" ); document.write( "X = 84/12
\n" ); document.write( "X = 7\r
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\n" ); document.write( "\n" ); document.write( "Let's check:
\n" ); document.write( "Does the sum of 7 times 7 and 5 times 7 equal 84?
\n" ); document.write( "7x7 + 5x7 = 84?
\n" ); document.write( "49 + 35 = 84?
\n" ); document.write( "84 = 84 Correct!\r
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