Question

x+2y,para x=-4 e y +2 qual o valor?

Answer 1

Substitua os valores:
x -> -4
y -> +2

x + 2.y
4 + 2.2 = 4+4 = 8

Answer 2

x -> -4
y -> +2

x + 2.y
4 + 2.2 = 4+4 = 8