Question

Dada a expressao 5.x-18.x-8 determine o valor numerico de:
x=2



x=3

Answer 1

5x - 18x - 8 ---------------------x=2
5 . 2 - 18 . 2 - 8 =
10 - 36 - 8 = - 34

5x - 18x - 8 --------------------x = 3
5 . 3 - 18 . 3 - 8 =
 15 - 54 - 8 = - 47