#GetSocialSmart: How to Hone Your Social Media Strategy

#GetSocialSmart: How to Hone Your Social Media Strategy

Matematika 2x + y = 8
x + y = 3
Berapa nilai X & Y ?

2x + y = 8
x + y = 3
Berapa nilai X & Y ?

Diketahui

2x + y = 8 ....(1)

x + y = 3 ....(2)

Eliminasi koefisien y

2x + y = 8

x + y = 3

_________-

x = 5

Subtitusi nilai x

2x + y = 8

2(5) + y = 8

10 + y = 8

y = -2

Jawaban:

x = 5

y = -2

Penjelasan dengan langkah-langkah:

2x + y = 8 |1| 2x + y = 8

x + y = 3 |1| x + y = 3

_________-

1x = 5

x = 5

2x + y = 8

2(5) + y = 8

10 + y = 8

y = 8 - 10

y = -2

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