document.write( "Question 169662: having trouble solvin this probolem using addition method,substitution and graphing not sure ifm i am suppose to have the same answer for all three methods\r
\n" ); document.write( "\n" ); document.write( "3x+2y=22
\n" ); document.write( "5x-4y=0 \n" ); document.write( "

Algebra.Com's Answer #125038 by stanbon(75887) $\"\"$ $\"About$

You can put this solution on YOUR website!
3x+2y=22
\n" ); document.write( "5x-4y=0
\n" ); document.write( "-------------
\n" ); document.write( "Elimination:
\n" ); document.write( "6x+4y = 44
\n" ); document.write( "5x-4y = 0
\n" ); document.write( "--------------
\n" ); document.write( "11x = 44
\n" ); document.write( "x = 4
\n" ); document.write( "---
\n" ); document.write( "3*4+2y = 22
\n" ); document.write( "2y = 10
\n" ); document.write( "y = 5
\n" ); document.write( "Ans: (4,5)
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\n" ); document.write( "Substitution:
\n" ); document.write( "3x+2y=22
\n" ); document.write( "5x-4y=0
\n" ); document.write( "---------
\n" ); document.write( "x = (4/5)y
\n" ); document.write( "3(4/5)y + 2y = 22
\n" ); document.write( "(12/5+ 10/5)y = 22
\n" ); document.write( "(22/5)y = 22
\n" ); document.write( "(1/5)y = 1
\n" ); document.write( "y = 5
\n" ); document.write( "---
\n" ); document.write( "x = (4/5)5 = 4
\n" ); document.write( "Ans: (4,5)
\n" ); document.write( "===========================
\n" ); document.write( "Graphing:
\n" ); document.write( "3x+2y=22
\n" ); document.write( "5x-4y=0
\n" ); document.write( "------------
\n" ); document.write( "y= (-3/2)x + 11
\n" ); document.write( "y = (5/4)x
\n" ); document.write( " $\"graph%28400%2C300%2C-10%2C10%2C-10%2C10%2C%28-3%2F2%29x+%2B+11%2C%285%2F4%29x%29\"$
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.\r
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