Question

Calcula x - y + z nos seguintes casos;

A)

x = ( + 3 ) , y = ( - 2 ) e z = ( - 4 )

B)

x = ( - 1 ) , y = 0 e z = ( + 3 )

C)

x = ( - 4 ) , y = ( - 15 ) e z = ( - 6 )

D)

x = ( + 4 ), y = ( + 5 ) e z = ( + 6 )​

Answer 1

Resposta:

A)

x = ( + 3 ) , y = ( - 2 ) e z = ( - 4 )

3-(-2)+(-4)=

3+2-4=

5-4=

1

B)

x = ( - 1 ) , y = 0 e z = ( + 3 )

-1-0+3=

-1+3=

-2

C)

x = ( - 4 ) , y = ( - 15 ) e z = ( - 6 )

-4-(-15)+(-6)=

-4+15-6=

11-6=

5

D)

x = ( + 4 ), y = ( + 5 ) e z = ( + 6 )

+4-(5)+6=

+4-5+6=

-1+6=

5

espero que isso ajude vc