Question

Given the function f(x) = −2x + 4, find x if f(x) = 20.

−8

−36

44

−12

show steps for solving

Answer 1

-2x+4=20
-2x=-24
x=12

Answer 2

isnt it -12

Answer 3

f(x) =20 so -2x+4=20 so -2x=16 so x=-8, not 12!!!! @chandanjha

Answer 4

so its -8 im so confused

Answer 5

20-4=16!

Answer 6

16/-2=-8!

Answer 7

sorry, there is no factorial

Answer 8

so its a

Answer 9

yeah i was wrong thnks

Answer 10

yeah, A

Answer 11

yeah a

Answer 12

thanks for the verification