SOLUTION: If f(x)=3x+7 and g(x)=x-2x find the value of f(-2)

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Question 525839: If f(x)=3x+7 and g(x)=x-2x find the value of f(-2)
Answer by Tatiana_Stebko(1539) About Me  (Show Source):
You can put this solution on YOUR website!
f%28x%29=3x%2B7 substitute x=-2 into the function
f%28-2%29=3%2A%28-2%29%2B7=-6%2B7=1