document.write( "Question 857227: Hi! I'm stuck on this question in my math and its says \"Determine which of the points is a solution to the system.\" Hopefully I got the right topic haha :) Okay so this is the question:\r
\n" ); document.write( "\n" ); document.write( "y=2x-3 (4,-4);(2,1);(3,3)
\n" ); document.write( "4x+y=15\r
\n" ); document.write( "\n" ); document.write( " Thanks! -Savanah
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Algebra.Com's Answer #516430 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
\"Determine which of the points is a solution to the system.\" Hopefully I got the right topic haha :) Okay so this is the question:
\n" ); document.write( "y=2x-3
\n" ); document.write( "(4,-4);(2,1);(3,3)
\n" ); document.write( "4x+y=15
\n" ); document.write( "-----------------
\n" ); document.write( "2 ways to do it.
\n" ); document.write( "There are 3 points, try them in both equations.
\n" ); document.write( "(4,-4)
\n" ); document.write( "y = 2x-3
\n" ); document.write( "-4 = 2*4 - 3 ? NG
\n" ); document.write( "----------
\n" ); document.write( "(2,1)
\n" ); document.write( "4x+y = 15
\n" ); document.write( "4*2 + 1 = 15 ? NG
\n" ); document.write( "--------
\n" ); document.write( "(3,3)
\n" ); document.write( "(3,3) fits both.
\n" ); document.write( "====================
\n" ); document.write( "Another way is to solve the system of equations.
\n" ); document.write( "y=2x-3 \r
\n" ); document.write( "\n" ); document.write( "4x+y=15
\n" ); document.write( "--
\n" ); document.write( "Sub for y in the 2nd eqn
\n" ); document.write( "4x + (2x-3) = 15
\n" ); document.write( "6x - 3 = 15
\n" ); document.write( "6x = 18
\n" ); document.write( "x = 3
\n" ); document.write( "---
\n" ); document.write( "y = 2x-3
\n" ); document.write( "y = 3
\n" ); document.write( "--> (3,3)\r
\n" ); document.write( "\n" ); document.write( "
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