Question

If g(x) = 2x- x + 5, then g (2)=

Answer 1

2(2)-(2)+5=7
g(2) equals 7

Answer 2

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Below is the solution:

(2) literally means to plug in 2 for x, so: 

g(2)=2(2)-(2)+5 
g(2)=4-2+5 
g(2)=7