document.write( "Question 1192525: Eq. 1 - 2x + 3y = -7
\n" ); document.write( " Eq. 2 x = - 3y + 17 \n" ); document.write( "

Algebra.Com's Answer #824399 by MathLover1(20850) $\"\"$ $\"About$

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\n" ); document.write( "\n" ); document.write( " $\"-+2x+%2B+3y+=+-7\"$ .........Eq. 1
\n" ); document.write( " $\"x+=+-+3y+%2B+17\"$ .........Eq. 2
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\n" ); document.write( "\n" ); document.write( "substitute $\"x\"$ from eq.2 in eq.1\r
\n" ); document.write( "\n" ); document.write( " $\"+-+2%28-+3y+%2B+17%29+%2B+3y+=+-7\"$ .....solve for $\"y\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"6y+-+34%2B+3y+=+-7\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"9y+=+-7%2B34\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"9y+=+27\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"y+=+3\"$ \r
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\n" ); document.write( "\n" ); document.write( "go to eq.2, substitute $\"y\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x+=+-+3%2A3+%2B+17\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x+=+-9%2B+17\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x+=+8\"$ \r
\n" ); document.write( "\n" ); document.write( "solution: $\"x+=+8\"$ , $\"y+=+3\"$ \r
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