document.write( "Question 92864This question is from textbook Finite Mathematics
\n" ); document.write( ": The solution to the system of equations below is: 3x+4y=-6, x-5y=17 \n" ); document.write( "
Algebra.Com's Answer #67777 by ankor@dixie-net.com(22740)\"\" \"About 
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3x + 4y = -6
\n" ); document.write( " x - 5y = 17
\n" ); document.write( ":
\n" ); document.write( "Multiply 2nd equation by 3 and subtract from the 1st equation:
\n" ); document.write( "3x + 4x = -6
\n" ); document.write( "3x -15y = 51
\n" ); document.write( "------------- subtracting eliminates x
\n" ); document.write( "0x +19y = -57
\n" ); document.write( "y = -57/19
\n" ); document.write( "y = -3
\n" ); document.write( ":
\n" ); document.write( "Find x using the 1st equation:
\n" ); document.write( "3x + 4(-3) = -6
\n" ); document.write( "3x - 12 = -6
\n" ); document.write( "3x = -6 + 12
\n" ); document.write( "3x = 6
\n" ); document.write( "x = 2
\n" ); document.write( ":
\n" ); document.write( "Check solutions in the 2nd equation
\n" ); document.write( "2 - 5(-3) = 17
\n" ); document.write( "2 + 15 = 17
\n" ); document.write( ":
\n" ); document.write( "Did this make sense to you? Any questions?
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