Let f(x) = -3x - 4 and g(x) = 2x - 6. find (f of g) (-7)

In order to do this, we must first find g(-7). By plugging -7 into the equation for g, we get g(-7) = -20. Next, we must plug this value into the equation for f(-20). This then gives us a final answer of (f of g)(-7) = 56.

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