document.write( "Question 1014354: 5.3\r
\n" );
document.write( "\n" );
document.write( "Solve the following exponential equation by expressing each side as a power of the same base and then equating exponents.\r
\n" );
document.write( "\n" );
document.write( "4^x+7 =16^x-4\r
\n" );
document.write( "\n" );
document.write( "The solution set is { }\r
\n" );
document.write( "\n" );
document.write( "I got 15. Is this correct? \n" );
document.write( "
Algebra.Com's Answer #630651 by rothauserc(4718)![]() ![]() You can put this solution on YOUR website! if your problem is 4^(x+7) = 16^(x-4), you are correct since \n" ); document.write( "16^(x-4) = (4^2)^(x-4) = 4^(2x-8), then \n" ); document.write( "4^(x+7) = 4^(2x-8) \n" ); document.write( "x+7 = 2x-8 \n" ); document.write( "x = 15 \n" ); document.write( " \n" ); document.write( " |