document.write( "Question 669879: the sum of two numbers is 10 the sum twice the first number and three times the second number is equal to 33 \n" ); document.write( "

Algebra.Com's Answer #416605 by ReadingBoosters(3246) $\"\"$ $\"About$

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x+y=10
\n" ); document.write( "2x+3y=33
\n" ); document.write( "...
\n" ); document.write( "Substitute
\n" ); document.write( "2(10-y) + 3y = 33
\n" ); document.write( "20 - 2y + 3y = 33
\n" ); document.write( "y = 33 - 20 = 13
\n" ); document.write( " $\"highlight_green%28y=13%29\"$
\n" ); document.write( "...
\n" ); document.write( "2x + 3(10-x) = 33
\n" ); document.write( "2x + 30 - 3x = 33
\n" ); document.write( "-x = 33 - 30
\n" ); document.write( "-x = 3
\n" ); document.write( " $\"highlight_green%28x+=+-3%29\"$
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