guys mohon di bantu yaa . Ini dia soalannya (5b+3)+4(3b-a)

= (5b + 3) + 4(3b - a)

= (5b + 3) + (12b - 4a)

= (5b + 12b) - 4a + 3

= 17b - 4a + 3


Semoga membantu...

(5b+3)+4(3b-a)
= 5b+3+12b-4a
=5b+12b-4a+3
=17b-4a+3

maaf kalo salah