Question

calcule a expressao 5x+x+9y para x=1 e y = -1

Answer 1

Resposta:

5x+x+9y=

5.1+1+9.(-1)

5+1-9

6-9=-3

Answer 2

Resposta:

=5×1+1+9×(-1)

=5+1+(-9)

=6+(-9)

=-3