document.write( "Question 1141984: substitutions method: a - 3 = 4b; 2a + 4b =9
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Algebra.Com's Answer #762640 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! the first equation is a=4b+3 \n" ); document.write( "so 2(4b+3)+4b=9 \n" ); document.write( "8b+6+4b=9 \n" ); document.write( "12b=3 \n" ); document.write( "b=(1/4) \n" ); document.write( "therefore, a = 4 \n" ); document.write( " \n" ); document.write( " |