document.write( "Question 92156: please help me with this problem Thank you in advance
\n" ); document.write( "x + Y=12
\n" ); document.write( "Y=2X
\n" ); document.write( "

Algebra.Com's Answer #66997 by tanimachatterjee(60)\"\" \"About 
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here we have 2 equations x+y=12 ...........(1)
\n" ); document.write( " and y=2x ..........(2)
\n" ); document.write( " now we can replace the value of y of equation (1) by 2x
\n" ); document.write( "so we have x+2x =12
\n" ); document.write( "or 3x =12
\n" ); document.write( "or x = 12/3= 4\r
\n" ); document.write( "\n" ); document.write( "we know from equation (2) that y = 2x
\n" ); document.write( "therefore value of y = 2*4= 8\r
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\n" ); document.write( "\n" ); document.write( " ans ..... x = 4 and y = 8
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