-7 + 4(n-1). Use this and plug in 10 for n, making it
-7 + 4(9)
-7+36
29

We know that
and 
Substitute in the value. 
Use a calculator to multiply. 
Answer:
-25
Step-by-step explanation:
-3b-75=0
+75 +75
-3b=75
/-3 /-3
b=-25
There isn't 2 solutions
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hope it helps
exponents could be any number between 1 and 10
I believe that it is equal to 66. :)