document.write( "Question 72476This question is from textbook Intermediate Algebra
\n" ); document.write( ": Solve the system of equations using the addition (elimination) method. If the answer is a unique solution, present it as an ordered pair: (x,y). If not, specify whether the answer is \"no solution\" or \"infinitely many solutions.\"
\n" ); document.write( "3x - 2y = 7
\n" ); document.write( "-9x + 6y = -21 \n" ); document.write( "
Algebra.Com's Answer #51810 by stanbon(75887)\"\" \"About 
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3x - 2y = 7
\n" ); document.write( "-9x + 6y = -21
\n" ); document.write( "-------
\n" ); document.write( "Multiply the 1st equation by 3 to get:
\n" ); document.write( "9x - 6x = 21
\n" ); document.write( "Add that to the 2nd equation to get:
\n" ); document.write( "0+0 =0
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\n" ); document.write( "That means the two equations are the equation for the same line.
\n" ); document.write( "It means every point on the line is a solution, so there are
\n" ); document.write( "infinitely many solutions to the system of equations. The equatios
\n" ); document.write( "are said to be dependent, meaning, one is a multiple of the other.
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "
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