Question

Tolong bantu disubsitusikan Ya Kak. .

Answer 1

Dengan eliminasi
300 v1' + 200 v2' = - 5000
v1' - v2' = 150

300 v1' + 200 v2' = - 5000
200 v1' - 200 v2' = 30000
--------------------------------------- +
500 v1' = 25000
v1' = 50 ←

v1' - v2' = 150
50 - v2' = 150
v2' = - 100 ←

Dengan substitusi
v1' - v2' = 150
v1' = 150 + v2'

300 v1' + 200 v2' = - 5000
300 (150 + v2') + 200 v2' = - 5000
45000 + 300 v2' + 200 v2' = - 5000
500 v2' = - 50000
v2' = - 100 ←

v1' = 150 + v2'
v1' = 150 + (-100)
v1' = 50 ←