document.write( "Question 375648: Solve using the addition principle.
\n" ); document.write( "a – 3 = 1\r
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Algebra.Com's Answer #267165 by mananth(16946)\"\" \"About 
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a-3=1
\n" ); document.write( "+3 +3
\n" ); document.write( "a-3+3=1+3
\n" ); document.write( "a=4
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