document.write( "Question 419426: Find the solution to the system of equations given below using elimination by addition.
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document.write( "5x + 2y = -45
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document.write( "5x + 8y = -15
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Algebra.Com's Answer #293356 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Find the solution to the system of equations given below using elimination by addition. \n" ); document.write( "5x + 2y = -45 \n" ); document.write( "5x + 8y = -15 \n" ); document.write( ": \n" ); document.write( "Multiply the 1st equation by -1, results \n" ); document.write( "Find the solution to the system of equations given below using elimination by addition. \n" ); document.write( "-5x - 2y = +45 \n" ); document.write( "5x + 8y = -15 \n" ); document.write( "------------------adding eliminates x, find y \n" ); document.write( "0x + 6y = 30 \n" ); document.write( "x = \n" ); document.write( "x = 5 \n" ); document.write( ": \n" ); document.write( "I'll let you find y using substitution in one of the original equations \n" ); document.write( "Check it in the other original equation \n" ); document.write( " |