To find a, you need to isolate/get the variable "a" by itself in the equation:
Multiply the inverse of 1/2, which is 2, to get rid of the fraction

a - 7 = 66 Add 7 on both sides to get "a" by itself
a - 7 + 7 = 66 + 7
a = 73
I believe it would be b= -264
(I’m not 100% sure though so you might wanna check)
Answer:
13
Step-by-step explanation:
convert percent to decimal: .20
.20 x 65
13
Answer:
Step-by-step explanation:
4x/2= -5
4x= -5*2
2x= -5
x= -5/2
Answer:24
Step-by-step explanation:Exponential functions are of the form f(x) = ab^x