Q // tugas
(50+ point)
-
ada dilampiran*
-
matur nuhun _/\_
(50+ point)
-
ada dilampiran*
-
matur nuhun _/\_
- Persamaan
4x + 7y = 5 ... (1)
x + y = -1 ... (2)
- Nilai x
4x + 7y = 5
7x + 7y = -7
____________-
-3x = 12
x = -4
- Nilai y
4x + 7y = 5
4x + 4y = -4
____________-
3y = 9
y = 3
- Kesimpulan
x = -4
y = 3
HP = {-4,3}
[tex]\purple{\boxed{\blue{\boxed{\green{\star{\orange{\ \: \: \mathcal{JK} \: \: \: {\green{\star}}}}}}}}} [/tex]
Jawab:
x = - 4
y = 3
Penjelasan dengan langkah-langkah:
4x + 7y = 5
x + y = - 1
4x + 7y = 5
4x + 4y = - 4
_____________-
3y = 9
y = 3
4x + 7y = 5
7x + 7y = - 7
___________-
- 3x = 12
x = - 4
