document.write( "Question 95642This question is from textbook STP mathematics 3a
\n" ); document.write( ": x+y=6
\n" ); document.write( "y=3+x\r
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Algebra.Com's Answer #69682 by edjones(8007)\"\" \"About 
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substitute x+3 or y in the 1st equation. x+3+x=6
\n" ); document.write( "subtract 3 from both sides 2x=3
\n" ); document.write( "divide 2 intoboth sides. x=3/2=1.5
\n" ); document.write( "substitute 1.5 for x in the 2nd equation y=3+1.5=4.5
\n" ); document.write( "x=1.5 y=4.5
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