Answer:
x=6.33
Explanation:
4=3x-15
19=3x
6.33=x
f(4) This means that x is 4, so you can plug in 4 for "x" in the equation
f(x) = 3x - 15
f(4) = 3(4) - 15
f(4) = 12 - 15
f(4) = -3
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