Ada yang bisa no. 5 a dan b???

a) (4 3) + X = (3 -2)
(-7 1) (-1 4)

X=(3 -2) - (4 3)
(-1 4) (-7 1)

X=(-1 -5)
(6 3)

b) X - (2 1) = (5 -6)
(-3 6) = (5 -3)

X = (5 -6) + (2 1)
(5 -3) (-3 6)

X = (7 -5)
(2 3)