202k views
4 votes
Please help me ASAP And show work please

Please help me ASAP And show work please-example-1
User Kertosis
by
4.6k points

2 Answers

3 votes

Answer:

x = 11

Explanation:

Given


3^(x-7) + 4 = 85 ( subtract 4 from both sides


3^(x-7) = 81


3^(x-7) =
3^(4)

Since the bases on both sides are equal, both 3 then equate the exponents

x - 7 = 4 ( add 7 to both sides )

x = 11

User Mithuzz
by
5.3k points
1 vote

Answer:

X = 11

Explanation:

3^(x-7) = 81

Find what exponent makes three into 81

The answer: x = 11

User Cole Diamond
by
5.1k points