document.write( "Question 784739: when one− fourth of a number is added to one-seventh of the numberˏ the sum is 22 what is the number? \n" ); document.write( "
Algebra.Com's Answer #477373 by KMST(5328)\"\" \"About 
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MY WAY:
\n" ); document.write( "Obviously the number is a positive integer divisible by 4 and 7, so it's divisible by \"4%2A7=28\".
\n" ); document.write( "I can write the number as \"28k\", knowing that \"k\" is a natural number (positivw integer).
\n" ); document.write( "\"28k\"= the number
\n" ); document.write( "\"28k%2F4=7k\"= one-fourth of the number
\n" ); document.write( "\"28k%2F7=4k\"= one-seventh of the number
\n" ); document.write( "What the problem says in words is translated as
\n" ); document.write( "\"28k%2F4%2B28k%2F7=22\" or \"7k%2B4k=22\"
\n" ); document.write( "Solving:
\n" ); document.write( "\"28k%2F4%2B28k%2F7=22\" --> \"7k%2B4k=22\" --> \"11k=22\" --> \"k=2\" --> \"28k=2%2A28\" --> \"28k=highlight%2856%29\"
\n" ); document.write( "If I do not have to explain my thinking, or \"show my work\", that is a fast way to solve the problem, and may help save time in a multiple choice test.
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\n" ); document.write( "A MORE TRADITIONAL WAY:
\n" ); document.write( "\"N\"= the number
\n" ); document.write( "What the problem says in words is translated as
\n" ); document.write( "\"N%2F4%2BN%2F7=22\"
\n" ); document.write( "We multiply both sides times \"4%2A7=28\" to eliminate denominators
\n" ); document.write( "\"28%28N%2F4%2BN%2F7%29=28%2A22\"
\n" ); document.write( "\"28N%2F4%2B28N%2F7=618\"
\n" ); document.write( "\"7N%2B4N=618\"
\n" ); document.write( "\"11N=618\"
\n" ); document.write( "\"11N%2F11=618%2F11\"
\n" ); document.write( "\"N=highlight%2856%29\"
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