dik=5p+3q=4dan 4p-7q=-25 dit=p+2q adalah pakai cara

5p+3q=4. |. 4 |
4p-7q=-25. |. 5 |
20p+12q = 16
20p-35q=-125
____________ -
47q = 141
q = 3
substitusi = 5p+3q=4
= 5p+3(3)=4
= 5p+9 = 4
= 5p = 4-9
= 5p = -5
= p = -1
jadi, p +2q = -1+2(3) = -1+6 = 5
semoga membantu