Question

(UMC-SP) se x=1,y=2x e z= 2y, o valor de x + z é?

Answer 1

Olá.

• x = 1
• y = 2x
• z = 2y

z = 2y = 2(2x) = 4x
z = 4(1) = 4

x + z = 1 + 4 = 5

Bons estudos.

Answer 2

x = 1
y = 2x = 2*1 --> y = 2
z = 2y = 2*2 --> z = 4

x + z = 1 + 4 = 5.