Question

Titik (2,4) terletak pada garis ax + 5y = 10. nilai a sama dengan

Answer 1

4a = 10
a = 10 / 4
a = 5 / 2
a = 2.5

Answer 2

>ax + 5y = 10    substitusikan (2,4)
>a(2) +5(4) =10
>2a + 20 =10
>2a = -10
>a = -10/2 = -5