Answer :

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Substitute 7 into 'x':

3(7) - 3

Solve:

g(7) = 18

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Answer: 18

Step-by-step explanation:

To find g(7) , we simply replace 7 by x

g(x) = 3x - 3

g(7) = 3(7) - 3

g(7) = 21 - 3

g(7) = 18