document.write( "Question 32047: how can i solve this equation by substitution:
\n" ); document.write( "x+2y=7
\n" ); document.write( "y=3x \n" ); document.write( "

Algebra.Com's Answer #18565 by mukhopadhyay(490) $\"\"$ $\"About$

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y=3x
\n" ); document.write( "Substitute the value of y in the equation x+2y=7.
\n" ); document.write( "So, x+2(3x) = 7
\n" ); document.write( "=>7x=7
\n" ); document.write( "=>x=1
\n" ); document.write( "y=3x=>y=3
\n" ); document.write( "Answer: x=1 and y=3
\n" ); document.write( " \n" ); document.write( "

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