Mary is solving the equation 2n – 3 = 83. her first three steps are shown:
step 1: 2n – 3 = 83
step 2: 2n = 86
step 3: ln 2n = ln 86

which shows step 4?
a.) ln 2 = nln 86
b.) n + ln 2 = ln 86
c.) nln 2 = ln 86
d.) n = ln 86 – ln2

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2^n - 3 = 83 
2^n = 86 
ln(2^n) = ln(86) 
n*ln(2) = ln(86) 
n= ln(86)/[ln(2)] (which is the same as "log base 2 of 86") 
n= 6.426264755

+1,000)=g7e=mc2-g=7 because if you know algebra you should know g=7 to get your answer