Answer:
3x - 14
Step-by-step explanation:
f = 2x + 1
2x + 1 * g
g = x - 7
2x + 1 * x - 7 = 3x - 7
3x - 7 * 2 = 3x - 14
Comments:
Hope this helped (:
also I assumed the $ = f at the begining so please let me know if I am wrong
