document.write( "Question 203481: I actually attempted the examples in my book but still do not grasp the concept if I can actually get someone to get to break this down for me i might be able to do the rest on my own:\r
\n" ); document.write( "\n" ); document.write( "y= -3x+19
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\n" ); document.write( "\n" ); document.write( "x+3y=2
\n" ); document.write( "-x+y=1 thank you \r
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Algebra.Com's Answer #153510 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
# 1\r
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\n" ); document.write( "\n" ); document.write( "\"y=-3x%2B19\" Start with the first equation.\r
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\n" ); document.write( "\n" ); document.write( "\"2x-1=-3x%2B19\" Plug in \"y=2x-1\"\r
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\n" ); document.write( "\n" ); document.write( "\"2x=-3x%2B19%2B1\" Add \"1\" to both sides.\r
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\n" ); document.write( "\n" ); document.write( "\"2x%2B3x=19%2B1\" Add \"3x\" to both sides.\r
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\n" ); document.write( "\n" ); document.write( "\"5x=19%2B1\" Combine like terms on the left side.\r
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\n" ); document.write( "\n" ); document.write( "\"5x=20\" Combine like terms on the right side.\r
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\n" ); document.write( "\n" ); document.write( "\"x=%2820%29%2F%285%29\" Divide both sides by \"5\" to isolate \"x\".\r
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\n" ); document.write( "\n" ); document.write( "\"x=4\" Reduce.\r
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\n" ); document.write( "\n" ); document.write( "Now that we know the value of 'x', we can solve for 'y'\r
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\n" ); document.write( "\n" ); document.write( "\"y=-3x%2B19\" Go back to the first equation.\r
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\n" ); document.write( "\n" ); document.write( "\"y=-3%284%29%2B19\" Plug in \"x=4\"\r
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\n" ); document.write( "\n" ); document.write( "\"y=-12%2B19\" Multiply\r
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\n" ); document.write( "\n" ); document.write( "\"y=7\" Combine like terms.\r
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\n" ); document.write( "\n" ); document.write( "So the solutions are \"x=4\" and \"y=7\".\r
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\n" ); document.write( "\n" ); document.write( "Which form the ordered pair .\r
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\n" ); document.write( "\n" ); document.write( "This means that the system is consistent and independent.\r
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\n" ); document.write( "\n" ); document.write( "# 2\r
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\n" ); document.write( "\n" ); document.write( "Start with the given system of equations:\r
\n" ); document.write( "\n" ); document.write( "\"system%28x%2B3y=2%2C-x%2By=1%29\"\r
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\n" ); document.write( "\n" ); document.write( "Add the equations together. You can do this by simply adding the two left sides and the two right sides separately like this:\r
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\n" ); document.write( "\n" ); document.write( "\"%28x%2B3y%29%2B%28-x%2By%29=%282%29%2B%281%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"%28x-x%29%2B%283y%2By%29=2%2B1\" Group like terms.\r
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\n" ); document.write( "\n" ); document.write( "\"0x%2B4y=3\" Combine like terms. Notice how the x terms cancel out.\r
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\n" ); document.write( "\n" ); document.write( "\"4y=3\" Simplify.\r
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\n" ); document.write( "\n" ); document.write( "\"y=3%2F4\" Divide both sides by \"4\" to isolate \"y\".\r
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\n" ); document.write( "\n" ); document.write( "\"x%2B3y=2\" Now go back to the first equation.\r
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\n" ); document.write( "\n" ); document.write( "\"x%2B3%283%2F4%29=2\" Plug in \"y=3%2F4\".\r
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\n" ); document.write( "\n" ); document.write( "\"x%2B9%2F4=2\" Multiply.\r
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\n" ); document.write( "\n" ); document.write( "\"4%28x%2B9%2Fcross%284%29%29=4%282%29\" Multiply both sides by the LCD \"4\" to clear any fractions.\r
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\n" ); document.write( "\n" ); document.write( "\"4x%2B9=8\" Distribute and multiply.\r
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\n" ); document.write( "\n" ); document.write( "\"4x=8-9\" Subtract 9 from both sides.\r
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\n" ); document.write( "\n" ); document.write( "\"4x=-1\" Combine like terms.\r
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\n" ); document.write( "\n" ); document.write( "\"x=-1%2F4\" Divide both sides by \"3\" to isolate \"x\".\r
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\n" ); document.write( "\n" ); document.write( "So the solutions are \"x=-1%2F4\" and \"y=3%2F4\".\r
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\n" ); document.write( "\n" ); document.write( "Which form the ordered pair .\r
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\n" ); document.write( "\n" ); document.write( "This means that the system is consistent and independent.\r
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