SOLUTION: can someone explain how this problem is done. g(x)=2x+10 for g(-25)

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Question 368965: can someone explain how this problem is done.
g(x)=2x+10 for g(-25)
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Substitute -25 for all instances of x and simplify.
g%28x%29=2x%2B10
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.
.
g%28-25%29=2%28-25%29%2B10
g%28-25%29=-50%2B10
highlight%28g%28-25%29=-40%29