document.write( "Question 1050587: Solve this system of equations using the addition method.
\n" ); document.write( "4a - 5b = 7
\n" ); document.write( "4a + 5b = 17
\n" ); document.write( "type the correct answer in the ordered pair form,then press enter
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Algebra.Com's Answer #666142 by ikleyn(52781)\"\" \"About 
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\n" ); document.write( "Add the two equations and see what happens.\r
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