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6x + 2y = 22
4x - 2y = 8
.................(+)
10x = 30
x = 3
4x - 2y = 8
4(3) - 2y = 8
12 - 2y = 8
- 2y = 8 - 12
-2y = - 4
y = -4/ -2
y = 2
hp(x,y) = (3,2)
2.
3x + 6y = 48 .....(X1)
18x - 3y = 54......(X2)
.
3x + 6y = 48
36x - 6y = 108
-------------------(+)
39x = 156
x = 156/39
x = 4
3x +6y = 48
3(4)+6y= 48
12 +6y = 48
6y = 48-12
6y = 36
y = 36/6
y = 6
HP (x,y)= (4,6)
3. misalkan bilangan itu x dan y
x + y = 67
x - y = 45
--------------(+)
2x = 112
x = 112/2
x = 56
x + y = 67
(56) + y = 67
y = 67- 56
y = 11
HP (x,y) = (56, 11)
56-11 =45
Jadi hasilnya adalah 56 dan 11, jika dicari bilangan terbesar maka bilangan tersebut adalah 56