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)\"\" \"About 
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If 10a+2b=15 and 5a=4b,what is the value of a+b?
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\n" ); document.write( "10a+2b=15
\n" ); document.write( "5a=4b ---> 10a = 8b
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\n" ); document.write( "10a+2b=15
\n" ); document.write( "10a = 8b
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\n" ); document.write( "8b + 2b = 15
\n" ); document.write( "b = 1.5
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\n" ); document.write( "a = 1.2
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\n" ); document.write( "a+b = 2.7
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