document.write( "Question 152005: 5^(x+7)=625^(x-7)
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document.write( " x= ? \n" );
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Algebra.Com's Answer #111731 by orca(409)![]() ![]() ![]() You can put this solution on YOUR website! Note that 625 = 5^4. \n" ); document.write( "So the original equation 5^(x+7)=625^(x-7) becomes: \n" ); document.write( "5^(x+7)=5^4(x-7) \n" ); document.write( "Therefore x+7 = 4(x-7) \n" ); document.write( "Solving the above equation for x, we have \n" ); document.write( "x + 7 = 4x - 28 \n" ); document.write( "3x = 35 \n" ); document.write( "x = 35/3 \n" ); document.write( " \n" ); document.write( " |