document.write( "Question 548342: Solve for a and b :\r
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document.write( "-5b - 2a = 46\r
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document.write( "7a - 5b = 19 \n" );
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Algebra.Com's Answer #356921 by stanbon(75887) ![]() You can put this solution on YOUR website! Solve for a and b : \n" ); document.write( "-5b - 2a = 46 \n" ); document.write( "7a - 5b = 19 \n" ); document.write( "--------------------- \n" ); document.write( "Rearrange: \n" ); document.write( "-2a - 5b = 46 \n" ); document.write( "7a - 5b = 19 \n" ); document.write( "--------------------- \n" ); document.write( "Subtract and solve for \"a\": \n" ); document.write( "9a = -27 \n" ); document.write( "a = -3 \n" ); document.write( "-------- \n" ); document.write( "Solve for \"b\": \n" ); document.write( "-2a - 5b = 46 \n" ); document.write( "-2*-3 -5b = 46 \n" ); document.write( "6 - 5b = 46 \n" ); document.write( "-5b = 40 \n" ); document.write( "b = -8 \n" ); document.write( "------------------ \n" ); document.write( "Solution: (-3,-8) \n" ); document.write( "========================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "========================= \n" ); document.write( " \n" ); document.write( " |