Question

7.7(4x + 3) = 10.2

Answer 1

7.7^(4x + 3) = 10.2

Answer 2

my bad i forgot the^

Answer 3

take the log of both sides... either base 10 or base e

\[\ln(7.7^{3x+4}) = \ln(10.2)\]

using log laws for powers

\[(4x + 3)\times \ln(7.7) = \ln(10.2)\]

divide both sides by ln(7.7)

\[4x + 3 = \frac{\ln(10.2)}{\ln(7.7)}\]

now solve for x in the normal manner