document.write( "Question 133603: \r
\n" ); document.write( "\n" ); document.write( "if angle A and angle B are complementry, and angle A=3x+4 and angle B=5x+6, find x.
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Algebra.Com's Answer #97774 by checkley71(8403)\"\" \"About 
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(3x+4)+(5x+6)=90
\n" ); document.write( "3x+5x+4+6=90
\n" ); document.write( "8x+10=90
\n" ); document.write( "8x=90-10
\n" ); document.write( "8x=80
\n" ); document.write( "x=80/8
\n" ); document.write( "x=10
\n" ); document.write( "(3*10+4)+(5*10+6)=90
\n" ); document.write( "30+4+50+6=90
\n" ); document.write( "34+56=90
\n" ); document.write( "90=90\r
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