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