Titik A (1,3) ditanslasikan​

a = 1

b = 7

jadi kalo nyari a itu:

1 + a + 2 = 4 kan

a = 4 – (1 + 2)

a = 4 – 3

a = 1

kalo b:

3 + (-5) + b = 5

b = 5 – (3 + (-5))

b = 5 – (-2)

b = 5 + 2

b = 7

maaf kalo salah :')