Question

a) X-y,sendo x = 6 e y= -2
b) 3x+2y,sendo x = -4 e y= -6
c) 3x-5y,sendo x = 1 e y= -6

Answer 1

Resposta:

$6 - ( - 2) \\ 6 + 2 = 8$

$3 \times ( - 4) + 2 \times ( - 6) \\ - 12 + ( - 12) \\ - 12 - 12 = - 24$

$3 \times 1 - 5 \times ( - 6) \\ 3 - ( - 30) \\ 3 + 30 = 33$