document.write( "Question 196304: when 63 is added to 1 fifth off my number the result is double my number \n" ); document.write( "

Algebra.Com's Answer #147144 by anantha(86) $\"\"$ $\"About$

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sol:
\n" ); document.write( "let the number be x
\n" ); document.write( "1 fifth of the number=x/5
\n" ); document.write( "63 is added to 1 fifth of the number=63+x/5
\n" ); document.write( "double my number=2x
\n" ); document.write( "according to the problem
\n" ); document.write( "63 is added to 1 fifth of the number=double the number
\n" ); document.write( "63+x/5=2x
\n" ); document.write( "multiplying by 5 on both sides
\n" ); document.write( "63*5+x/5*5=2x*5
\n" ); document.write( "315+x=10x
\n" ); document.write( "subtract x on both sides
\n" ); document.write( "315+x-x=10x-x
\n" ); document.write( "315=9x
\n" ); document.write( "dividing by 9 on both sides
\n" ); document.write( "315/9=9x/9
\n" ); document.write( "35=x
\n" ); document.write( "x=35
\n" ); document.write( "the number=35
\n" ); document.write( "verification:
\n" ); document.write( "1 fifth of the number=35/5=7
\n" ); document.write( "63 is added to 1 fifth of the number=63+7=70
\n" ); document.write( "double the number=2*35=70
\n" ); document.write( "according to the problem both are equal
\n" ); document.write( "x=35 is correct answer
\n" ); document.write( " \n" ); document.write( "

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