2/1 is the answer. Thank ya
5x-40=3x+8
Add 40 to both sides
5x=3x+48
Subtract 3x from both sides
2x=48
Divide by two on both sides
X=24
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<u>We are given:</u>
f(x) = 3x + 8
g(x) = -x³
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<u>The Concept:</u>
We have to find the values of f(g(3)), which means that we have to apply the function g() on 3 and apply the function f() on the value we get.
<u>Finding f(g(3)):</u>
<u>Finding g(3):</u>
g(x) = -x³
g(3) = -(3)³
g(3) = -27
<u>Finding f(g(3)):</u>
f(x) = 3x + 8
f(g(3)) = 3(g(3)) + 8
f(g(3)) = 3(-27) + 8
f(g(3)) = -81 + 8
f(g(3)) = -73
Hence, f(g(3)) = -73