document.write( "Question 50673This question is from textbook Beginning Algebra
\n" ); document.write( ": I tried to use the substitution solvers and could not figure this out.\r
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\n" ); document.write( "\n" ); document.write( "Solve the system by substitution.
\n" ); document.write( " x + y = 12
\n" ); document.write( " y = 2x\r
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Algebra.Com's Answer #33743 by venugopalramana(3286)\"\" \"About 
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Solve the system by substitution.
\n" ); document.write( "x + y = 12
\n" ); document.write( "y = 2x ............put this y=2x in the 1 st.eqn to get
\n" ); document.write( "x+2x=12
\n" ); document.write( "3x=12
\n" ); document.write( "x=12/3=4
\n" ); document.write( "so y=2x=2*4=8
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