Tolong bantu ya kak​

Jawaban:

a = 2/3

b = 4

a + b

= 2/3 + 4

= 20/12

cara :

(3a+1 2a+b ) (6 4 ) (-3 0)

(-3+b -2+b²) – (2 2b) = (-1 6)

nyari b

-3 + b – 2 = -1

b = -1 + 3 + 2

b = 4

nyari a

3a + 1 – 6 = -3

3a – 5 = -3

3a = 2

a = 2/3