The answer would be 7(a - 1)
Answer:

Step-by-step explanation:
we are given a exponential equation

we want to figure out x
remember that,

thus
take
both sides:

use the formula:

by using calculator

If we are solving for x then it would be -1 :)
Answer:
c. dividing is the inverse of multiplying because it doesn't really relate the equation like the others do.
Answer:
21x-28
Step-by-step explanation:
Distribute
7(3x-4)
7*3x=21x
7*-4=-28