document.write( "Question 173652: How do you Graph and find the Solution for?
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document.write( "2x+y=5
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document.write( "3x-y=10 \n" );
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Algebra.Com's Answer #128508 by Mathtut(3670)![]() ![]() ![]() You can put this solution on YOUR website! using the process of elimination.....which means you manipulate the current equations so that when one added or subtracted from the other a variable is eliminated. \n" ); document.write( ": \n" ); document.write( "2x+y=5 \n" ); document.write( "3x-y=10 \n" ); document.write( ": \n" ); document.write( "in our case no manipulation is needed because when you add the two equations together, the way they currently stand,the y terms are eliminated because y-y=0. We are left with 2x+3x=10+5 \n" ); document.write( ": \n" ); document.write( "5x=15 \n" ); document.write( ": \n" ); document.write( " \n" ); document.write( ": \n" ); document.write( "now take x's found value and plug it back into either equation and solve for y.I choose the first \n" ); document.write( ": \n" ); document.write( "2(3)+y=5 \n" ); document.write( ": \n" ); document.write( "6+y=5 \n" ); document.write( ": \n" ); document.write( " \n" ); document.write( ": \n" ); document.write( "the graph confirms the lines cross at (3,-1) \n" ); document.write( ": \n" ); document.write( " \n" ); document.write( ": \n" ); document.write( " |