Question

MTK SMP KELAS 8

!gausah penjelesan(huruf)langsung cara jalannya!!!

#ngasal report/di-blokir​

Answer 1

Materi : SPLDV

Soal Nomor 1

0,2x + 0,5y = 0,5 [ ×10 ]

2x + 5y = 5

x + 5y = -1

________-

x = 5 - ( -1 )

x = 5 + 1

x = 6

---

x + 5y = -1

6 + 5y = -1

5y = -1 - 6

5y = -7

y = -7/5

Soal Nomor 2

8x - 3y = 9 [ × -1 ]

- 8x + 3y = -9

- ⅙x + ½y = 2 [ ×6 ]

- x + 3y = 12

---

- 8x + 3y = -9

- x + 3y = 12

___________-

- 7x = -21

x = 3

---

- x + 3y = 12

3y = x + 12

3y = 3 + 12

3y = 15

y = 5

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