e^(8x + 8) = 2 take the ln of oth sides
ln e^(8x + 8) = ln (2) and we can write....
(8x + 8) * ln e = ln (2) and ln e = 1, so we can forget this....and we have
8x + 8 = ln (2) subtract 8 from both sides
8x = ln (2) - 8 divide both sides by 8
x = [ ln (2) - 8 ] / 8 ≈ - 0.913