What is the simplified form of f x - 1 + 4 + 7x - 3

The question is as follows:

What's the simplified form of x - 1 + 4 + 7x - 3?

A. 6x + 3

B. 8x

C. 6x

D. 8x + 6

we can rearange the terms and add like terms

group x with x and constnats with constnats

1x-1+4+7x-3

-1+4-3+1x+7x

3-3+1x+7x

0+1x+7x

1x+7x

8x

answer is B

The answer to this would be: 7x + f (x)