f(x) = 2x + 7 and f(x) = -1
Replace f(x) with -1:
-1 = 2x +7
Subtract 7 from both sides:
-8 = 2x
Divide both sides by 2:
x = -8 /2
x = -4
Answer: The answer to the first question is 20
Step-by-step explanation:
I think question cannot be deleted here because I also tried
