Question

Determine o valor de x,y e z de modo que cada igualdade seja verdadeira.​

Answer 1

a)

2x = –6

x = –3

2 = y

4z = 4

z = 1

x = -3

y = 2

z = 1

b)

–6 = 2x

x = –3

–2y = –5

y = 5/2

0 = z

x = –3

y = 5/2

z = 0

c)

1 = x/3

x = 3

6 = –2y/3

18 = –2y

y = –9

–2 = 2z/3

–6 = 2z

z = –3

x = 3

y = –9

z = –3

d)

–3 + x = –4

x = –4 + 3 = –1

–3y + 3 = 3

–3y = 3 – 3 = 0

y = 0

–3z = 6

z = –2

x = –1

y = 0

z = –2