document.write( "Question 23711: Hello,
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document.write( "I've got a series of equations and only one of them can be usefull to find the solutions of the others.
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document.write( "The equation is 3 x + 2 y = 189
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document.write( "My problem is that I can't possibly find x nor y and thus I'm stuck with the other equations.
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document.write( "Can you tell me what I should look for in order to find the solutions?\r
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document.write( "Thank you \n" );
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Algebra.Com's Answer #12477 by rapaljer(4671) You can put this solution on YOUR website! Did you want to graph this equation? If so, then remember that any equation in the form of Ax +By = C will be a straight line, and you need only two points to determine the line. So, when the equation is in standard form like this one is, it's easiest to find the x and y-intercepts.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "3x+2y =189 \n" ); document.write( "If x=0, then 2y = 189, so y = 189/2 = 94.5 \n" ); document.write( "If y = 0, then 3x=189, so x= 63\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "These are very large numbers, so the graph will have to be very large or maybe you should use a scale of 10. On the x and y axis, instead of counting off 1, 2, 3, etc. as we usually do, use 10, 20, 30, etc. \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "If you graph these points it should look like this:\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "R^2 at SCC \n" ); document.write( " \n" ); document.write( " |