document.write( "Question 238626: Solve the system by the elimination method.
\n" ); document.write( "5x + 5y = -13
\n" ); document.write( "7x - 3y = 19\r
\n" ); document.write( "\n" ); document.write( "I'm having a hard time understading this equation. \n" ); document.write( "
Algebra.Com's Answer #175323 by Alan3354(69443)\"\" \"About 
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Solve the system by the elimination method.
\n" ); document.write( "5x + 5y = -13
\n" ); document.write( "7x - 3y = 19
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\n" ); document.write( "To eliminate one of the variables, multiply one or both eqns to get the same coefficient for one of them. You can do either, I'll do y
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\n" ); document.write( "5x + 5y = -13 x3 --> 15x + 15y = -39
\n" ); document.write( "7x - 3y = 19 x5 --> 35x - 15y = 95
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\n" ); document.write( "15x + 15y = -39
\n" ); document.write( "35x - 15y = 95
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\n" ); document.write( "50x = 56
\n" ); document.write( "x = 56/50 = 1.12
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\n" ); document.write( "Usually it's \"elimination and substution\", once you find one, you can sub and find the others.
\n" ); document.write( "7x - 3y = 19
\n" ); document.write( "7*1.12 - 3y = 19
\n" ); document.write( "3y = 7.84 - 19 = - 11.16
\n" ); document.write( "y = -3.72\r
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