document.write( "Question 145337: Could someone please help me with a few problems on the Elimination Method?
\n" ); document.write( "1) 5x - y = 12
\n" ); document.write( " 3x + y = 4\r
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\n" ); document.write( "\n" ); document.write( "2) 2x - y = -6
\n" ); document.write( " 2x - 2y = -4\r
\n" ); document.write( "\n" ); document.write( "I have the directions on how to work these problems, but I'm having a hard time understanding how to write them down on the paper.If you don't mind,would you please show me how they would look when you write them.That would help me understand it better,so when I take a test over this, I will know how it is suppose to look.
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Algebra.Com's Answer #106013 by scott8148(6628)\"\" \"About 
You can put this solution on YOUR website!
to eliminate one of the variables, just arrange for the number value of the coefficients of the variable to be equal
\n" ); document.write( "__ then add or subtract the equations as needed\r
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\n" ); document.write( "\n" ); document.write( "1) the number value (absolute value) of the y-coefficients is the same (1)
\n" ); document.write( "__ adding the two equations ELIMINATES the y giving 5x+3x=12+4 __ 8x=16 __ x=2
\n" ); document.write( "__ substituting __ 3(2)+y=4 __ 6+y=4 __ y=-2\r
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\n" ); document.write( "\n" ); document.write( "2) the value of the x-coefficients is the same (2)
\n" ); document.write( "__ subtracting the 2nd equation from the 1st gives -y-(-2y)=-6-(-4) __ y=-2
\n" ); document.write( "__ substituting __ 2x-(-2)=-6 __ 2x=-8 __ x=-4\r
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\n" ); document.write( "\n" ); document.write( "you can \"arrange\" for the coefficients to be equal by multiplying one or both of the equations by the appropriate quantities
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