Answer:
11
Explanation:
Substitute 4 for x
2(4) +3
F(x) = 2x+3 is just a function, so if you replace one of the "x" with 4 you have to replace the other one so it just becomes
F(4) = 2(4) + 3 then you do 2(4) = 8 then add 3 to it and it gets you 11.
hope this helps
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