document.write( "Question 56389: y=2x-2\r
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Algebra.Com's Answer #38239 by Lacey020991(49)\"\" \"About 
You can put this solution on YOUR website!
y=2x-2
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\n" ); document.write( "I'm not sure which way your supposed to solve this, so i will show you all 3.
\n" ); document.write( "Graphing:
\n" ); document.write( "\"graph%28300%2C200%2C-5%2C5%2C-5%2C5%2C2x-2%2C-x%2B1%29\"
\n" ); document.write( "So your answer would be (1,0)
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\n" ); document.write( "By elimination, you would need to put theses equations in to standard form
\n" ); document.write( "y = 2x - 2 ---- move the 2x to the other side
\n" ); document.write( "-2x + y = -2 ---- this next step isnt neccesary, but i like to do it.
\n" ); document.write( "2x - y = 2
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\n" ); document.write( "y = -x + 1 ---- move the x to the other side
\n" ); document.write( "x + y = 1
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\n" ); document.write( "You would now put these equations on top of each other and eliminate 1 variable. In this case, the y's cancel out and you dont have to multiply anything.
\n" ); document.write( "2x - y = 2
\n" ); document.write( " x + y = 1
\n" ); document.write( "-----------
\n" ); document.write( "3x = 3
\n" ); document.write( "x = 1
\n" ); document.write( "Put this answer back into one of the equations. The second looks easier to me so im going to use that 1.
\n" ); document.write( "x + y = 1
\n" ); document.write( "1 + y = 1
\n" ); document.write( "y = 0
\n" ); document.write( "So your answer is (1,0)
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\n" ); document.write( "To solve by substitution, you would take one of the equations and put the second in where the variable is.
\n" ); document.write( "y=2x-2
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\n" ); document.write( "The second equation is y=... so wherever there is a y in the first equation, your going to put the second equation.
\n" ); document.write( "y=2x-2
\n" ); document.write( "-x + 1 = 2x - 2 ----then solve for x (isolate it)
\n" ); document.write( "1 = 3x - 2
\n" ); document.write( "3 = 3x
\n" ); document.write( "1 = x
\n" ); document.write( "Then put your answer back into one of the equations. the first looks easier to me, so im going to use that one.
\n" ); document.write( "y = 2x - 2
\n" ); document.write( "y = 2(1) - 2
\n" ); document.write( "y = 2 - 2
\n" ); document.write( "y = 0
\n" ); document.write( "So again your answer would be (1,0)
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\n" ); document.write( "Hope this helped!\r
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