tentukan fpb dari 6,12dan 15​

First, multiply the first equation by 2.
That turns the first equation into:
6x - 2y = 18
That way it can easily be added to the second equation:
6x - 2y = 16 x + 2y = 5
7x = 21
As you can see, the y disappeared, which was the objective of this operation.
Now the equations can be solved easily:
7x = 21 x = 3
Insert x=3 in the original equation:
3*3 - y = 8 9 - y = 8 9 = 8 + y y = 1
So the result is:
x = 3 y = 1

Answered by TestUser6 | 2024-06-10

{ 3 x − y = 8 / ⋅ 2 x + 2 y = 5 ​ { 6 x − 2 y = 16 x + 2 y = 5 ​ + − − − − − − − − 7 x = 21 / : 7 x = 3
x + 2 y = 5 3 + 2 y = 5 2 y = 5 − 3 2 y = 2 / : 2 y = 1 { x = 3 y = 1 ​

Answered by Lilith | 2024-06-10

To solve the equations 3 x − y = 8 and x + 2 y = 5 using the combination method, we first eliminate one variable through multiplication and addition. This process resulted in x = 3 and y = 1 .
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Answered by TestUser6 | 2024-10-30

Jawab:FPB = 3Penjelasan dengan langkah-langkah:Faktorisasi prima 6 = 2 x 3Faktorisasi prima 12 = 2 x 2 x 3Faktorisasi prima 15 = 3 x 5FPB = 3KPK = 2 x 2 x 3 x 5 = 60

Answered by agungkrishna79 | 2025-08-22