document.write( "Question 1156820: If 10a+2b=15 and 5a=4b,what is the value of a+b?
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Algebra.Com's Answer #779606 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! If 10a+2b=15 and 5a=4b,what is the value of a+b? \n" ); document.write( "---------------- \n" ); document.write( "10a+2b=15 \n" ); document.write( "5a=4b ---> 10a = 8b \n" ); document.write( "==================== \n" ); document.write( "10a+2b=15 \n" ); document.write( "10a = 8b \n" ); document.write( "---- \n" ); document.write( "8b + 2b = 15 \n" ); document.write( "b = 1.5 \n" ); document.write( "----- \n" ); document.write( "a = 1.2 \n" ); document.write( "=============== \n" ); document.write( "a+b = 2.7 \n" ); document.write( " \n" ); document.write( " |