If f(x) =3(x+ 4) find f(-2)

f(-2) = 6

Step-by-step explanation:

To find f(-2) we simply replace "x" in the functional expression with "-2" and evaluate the numerical

f(x) = 3 (x + 4)

then

f(-2) = 3 (-2 +4) = 3 (2) = 6

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

go and ask your mom to you