Question

determine os valores das letra a, b, c e d​

Answer 1

Se f(x) = 3x - 2, temos:

a = 3(1) - 2

a = 3 - 2

a = 1

b = 3(4) - 2

b = 12 - 2

b = 10

13 = 3(c) - 2

13 = 3c - 2

3c = 13 + 2

3c = 15

c = 15/3

c = 5

19 = 3(d) - 2

19 = 3d - 2

3d = 19 + 2

3d = 21

d = 21/3

d = 7