document.write( "Question 478649: Solve the system of equations by elimination.
\n" ); document.write( "2x − 9y = −79
\n" ); document.write( "9x + 2y = −58
\n" ); document.write( "x, y =
\n" ); document.write( "I need the process please! \n" ); document.write( "
Algebra.Com's Answer #327964 by ankor@dixie-net.com(22740)\"\" \"About 
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2x − 9y = −79
\n" ); document.write( "9x + 2y = −58
\n" ); document.write( ":
\n" ); document.write( "We can use the elimination process here,
\n" ); document.write( " multiply the 1st equation by 2, multiply the 2nd equation by 9, results:
\n" ); document.write( "4x - 18y = -159
\n" ); document.write( "81x+ 18y = -522
\n" ); document.write( "------------------addition eliminates y,find x
\n" ); document.write( "85x = - 680
\n" ); document.write( "x = \"%28-680%29%2F85\"
\n" ); document.write( "x = -8
\n" ); document.write( ":
\n" ); document.write( "Find y using substitution for x in the 2nd equation
\n" ); document.write( "9(-8) + 2y = -58
\n" ); document.write( "-72 + 2y = -58
\n" ); document.write( "2y = -58 + 72
\n" ); document.write( "2y = +14
\n" ); document.write( "y = +7
\n" ); document.write( ":
\n" ); document.write( "Check solutions in the 1st equation
\n" ); document.write( "2(-8) − 9(7) = −79
\n" ); document.write( "-16 - 63 = -79 \n" ); document.write( "
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