Question

Pelo amor de Deus alguém me ajuda

Answer 1

Resposta:

a)f{x} = 0:

-3x + 2 = 0

-3x = -2

x = 3/2

b)f{x} = 11:

-3x + 2 = 11

(-3x = 9)*(-1)

3x = 9

x = 3

c)f{x} = -1/2:

-3x + 2 = -1/2

-3x = -1/2 - 4/2

-3x = -5/2

x = 5/6

d)f{x} = 2:

-3x + 2 = 2

-3x = 0

x = 0

e)f{x} = -7:

-3x + 2 = -7

-3x = -9

x = 3

f)f{x} = 1:

-3x + 2 = 1

-3x = -1

x = 1/3

g)f{x} = -10:

-3x + 2 = -10

-3x = -12

x = 4