document.write( "Question 45011: which of the ordered pairs is a solution for the equation 5x-4y=20?
\n" ); document.write( "a. (-4,-5)\r
\n" ); document.write( "\n" ); document.write( "b. (0,5)\r
\n" ); document.write( "\n" ); document.write( "c. (0,-5)\r
\n" ); document.write( "\n" ); document.write( "d. (-4,0)
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Algebra.Com's Answer #29819 by Nate(3500)\"\" \"About 
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c. (0,-5)
\n" ); document.write( "x = 0
\n" ); document.write( "y = -5
\n" ); document.write( "5x - 4y = 20
\n" ); document.write( "5(0) - 4(-5) = 20
\n" ); document.write( "20 = 20
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