document.write( "Question 1046024: Solve the following system of equations using either the substitution method or the addition method: \r
\n" ); document.write( "\n" ); document.write( "x = 2y + 7 \r
\n" ); document.write( "\n" ); document.write( "3y - x = 8 \n" ); document.write( "

Algebra.Com's Answer #661518 by MathLover1(20850) $\"\"$ $\"About$

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\r
\n" ); document.write( "\n" ); document.write( " $\"x+=+2y+%2B+7+\"$ ..........eq.1....since solved for $\"x\"$ , substitute it in eq.2\r
\n" ); document.write( "\n" ); document.write( " $\"3y+-+x+=+8\"$ ..........eq.2
\n" ); document.write( "-------------------------------\r
\n" ); document.write( "\n" ); document.write( " $\"3y+-+%282y+%2B+7+%29+=+8\"$ .......solve for $\"y\"$ \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " $\"3y+-+2y+-+7++=+8\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"y++=+8%2B7\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"highlight%28y++=15%29\"$ \r
\n" ); document.write( "\n" ); document.write( "find $\"x\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x+=+2y+%2B+7+\"$ ..........eq.1\r
\n" ); document.write( "\n" ); document.write( " $\"x+=+2%2A15+%2B+7+\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"highlight%28x+=+37%29+\"$ \r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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