document.write( "Question 478416: How do I solve the system of equations by graphing y=-x+21; y=-2x+30 and find the ordered pair for this problem? \n" ); document.write( "
Algebra.Com's Answer #327824 by mananth(16946)\"\" \"About 
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y=-x+21............1
\n" ); document.write( "y=-2x+30 ...........2\r
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\n" ); document.write( "when x= 0 y= 21 ( 0 , 21 )
\n" ); document.write( "when y = 0 x= 21 ( 21 , 0 )
\n" ); document.write( "Equation 2
\n" ); document.write( "when x= 0 y= 30 ( 0 , 30 )
\n" ); document.write( "when y = 0 x= 15 ( 15 , 0 )\r
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\n" ); document.write( "\n" ); document.write( "solution (9,12)
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