document.write( "Question 1093252: You must show all of your work to receive credit. All or nothing. Solve the system using any method. 3/x+4/y=5/2. 6/x+1/y=1/2 \n" ); document.write( "
Algebra.Com's Answer #707873 by MathTherapy(10552)\"\" \"About 
You can put this solution on YOUR website!
You must show all of your work to receive credit. All or nothing. Solve the system using any method. 3/x+4/y=5/2. 6/x+1/y=1/2
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\"3%2Fx+%2B+4%2Fy+=+5%2F2%09\" ------ eq (i)\r\n" );
document.write( "\"6%2Fx+%2B+1%2Fy+=+1%2F2\" ------ eq (ii)	\r\n" );
document.write( "\"-+6%2Fx+-+8%2Fy+=+-+10%2F2\" ------ Multiplying eq (i) by - 2 ------ eq (iii)	\r\n" );
document.write( "\"-+7%2Fy+=+-+9%2F2\" ---------- Adding eqs (iii) & (ii)	\r\n" );
document.write( "- 9y = - 14 -------- Cross-multiplying\r\n" );
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document.write( "Instead of substituting the value of y into one of the equations, it's best to repeat the process, as follows:\r\n" );
document.write( "\"3%2Fx+%2B+4%2Fy+=+5%2F2%09\" ------ eq (i)\r\n" );
document.write( "\"6%2Fx+%2B+1%2Fy+=+1%2F2\" ------ eq (ii)	\r\n" );
document.write( "\"-+24%2Fx+-+4%2Fy+=+-+4%2F2\" ------ Multiplying eq (ii) by - 4 ------ eq (iii)	\r\n" );
document.write( "\"-+21%2Fx+=+1%2F2\" ---------- Adding eqs (iii) & (i)	\r\n" );
document.write( "x = - 21(2) ------- Cross-multiplying\r\n" );
document.write( "\"highlight_green%28matrix%281%2C3%2C+x%2C+%22=%22%2C+-+42%29%29\"
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