document.write( "Question 840300: solve the linear system by using elimination \r
\n" ); document.write( "\n" ); document.write( "3x - 4y = -16\r
\n" ); document.write( "\n" ); document.write( "x - 4y = -40
\n" ); document.write( "

Algebra.Com's Answer #506110 by ewatrrr(24785)\"\" \"About 
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\n" ); document.write( "Hi
\n" ); document.write( "solve the linear system by using elimination
\n" ); document.write( " 3x - 4y = -16
\n" ); document.write( " x - 4y = -40\r
\n" ); document.write( "\n" ); document.write( " 3x - 4y = -16
\n" ); document.write( " -x + 4y = 40 |multiplying 2nd EQ by -1 and adding to 1st EQ
\n" ); document.write( " 2x = 24
\n" ); document.write( " x = 12 and y = 13 |\"x-4y=+-40\", 12+40 = 4y, y = 52/4
\n" ); document.write( "CHECKING our answer***
\n" ); document.write( "using: 3x - 4y = -16
\n" ); document.write( " 36 - 52= -16
\n" ); document.write( "Wish You the Best in your Studies. \n" ); document.write( "
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