document.write( "Question 651012: = 7 2(4)-11how would i determine whether (2,4,1) is a solution of the following system.\r
\n" ); document.write( "\n" ); document.write( "2x-4+z=-11
\n" ); document.write( "x+y=6
\n" ); document.write( "2y-z=7
\n" ); document.write( "

Algebra.Com's Answer #407527 by fcabanski(1391)\"\" \"About 
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Plug in the numbers (2,4,1) for (x,y,z) in each equation. If all three are true, then that is a solution.


\n" ); document.write( "Is the first equation supposed to be 2x-4y+z=-11? If so, it's true. If not, it's not true and therefore the given ordered triple doesn't solve the system.


\n" ); document.write( "2(2) -4(4) +1 = -11 --> 4-16+1 = -11 is true.


\n" ); document.write( "2+4 = 6 is true


\n" ); document.write( "2(4)-1 = 7 is true.


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