document.write( "Question 892195: Hi, please help me solve these:\r
\n" ); document.write( "\n" ); document.write( "7^x + 7^(x-1) = 8^x\r
\n" ); document.write( "\n" ); document.write( "5^x + 0,2^x = 5,2\r
\n" ); document.write( "\n" ); document.write( "Thank you
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Algebra.Com's Answer #540358 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
7^x + 7^(x-1) = 8^x
\n" ); document.write( "has to be x=1, then you have
\n" ); document.write( "7 + 1 = 8, remember any no.to the power of 0 = 1
\n" ); document.write( ":
\n" ); document.write( "5^x + 0.2^x = 5.2
\n" ); document.write( "same here x=1
\n" ); document.write( "5 + .2 = 5.2
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