Mohon minta tolong dibantu ​

Posted on

Mohon minta tolong dibantu ​

Mohon minta tolong dibantu ​

~SPLDV

4x – 7 = 5 (2 – y)

4x – 7 = 10 – 5y

4x + 5y = 17 … (1)

3x = 2y – 16

3x – 2y = – 16 … (2)

4x + 5y = 17 … kali 3

3x – 2y = – 16 … kali 4

12x + 15y = 51

12x – 8y = – 64

____________ –

23y = 115

y = 5

3x = 2y – 16

3x = 2 (5) – 16

3x = – 6

x = – 2

Nilai dari 2y = 2 (5) = 10