Question

(0,49)^x+2 = 1 3/7
help

Answer 1

$0,49^{x+2} =1 \frac{3}{7}$
$0.49^{x+2} = \frac{10}{7}$
$(\frac{7}{10}) ^{2x+4} =( \frac{7}{10} ^{-1} )$
2x+4= - 1
2x= - 5
x= - 2.5