Question 282972
.07 = 6.3 (1 / 2)^((x - 1962) / 28)


log(.07 / 6.3) = ((x - 1962) / 28)[log(1 / 2)]


{[log(.07 / 6.3)] / [log(1 / 2)]} * 28 = x - 1962


[{[log(.07 / 6.3)] / [log(1 / 2)]} * 28] + 1962 = x