Heberwagner
Y = -2x z = y + 3 a) y e z, p/ x = 5 y = -2(5) = -10 z = y + 3 = -10 + 3 = -7 ............. b) x e z, p/ y = -12 y = -2x => x = y/-2 => x = -12/-2 => x = 6 z = y + 3 => z = -12 + 3 => z = -9 .............. c) x e y, p/ z = -3 z = y +3 => y = z - 3 => y = -3 - 3 => y = -6 y = -2x => x = y/-2 => x = -6/-2 => x = 3
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Verified answer
X.(-2) =========> Y + 3 ==========> Z
Calcule :
x= 5 ==>y,z ==>Y= -2x ==>y= -2(5) ==>y= - 10; z = y+3 ==>z = -10+ 3==>z = - 7
y=-12 ==>y,z ==>-12= -2x ==>x= 6 ; z = -12+3 ==>z = - 9
z= - 3 ==>y,x ==> -3 = y+3==> y -3-3==>y= -6 ; -2x=y ==> -2x=-6==> x= 3
z = y + 3
a) y e z, p/ x = 5
y = -2(5) = -10
z = y + 3 = -10 + 3 = -7
.............
b) x e z, p/ y = -12
y = -2x => x = y/-2 => x = -12/-2 => x = 6
z = y + 3 => z = -12 + 3 => z = -9
..............
c) x e y, p/ z = -3
z = y +3 => y = z - 3 => y = -3 - 3 => y = -6
y = -2x => x = y/-2 => x = -6/-2 => x = 3