1. 3x + 2y = 12 dan 2x - y = 8 ....??
2. 2x + y = 5 dan 3x - 2y = 4
3. x + y = 12 dan 3x - y = 4
4. x + 2y = 4 dan 2x - y = 3
5. 2x - 4y = 10 dan x + 2y = 9
6. x + y = 6 dan -x + 3y = 2
7. x + 2y = 4 dan 2x + 4y = 5
8. 3x - y = 2 dan 6x - 2y = 4
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3x+2x+2y-y = 12-8
5x + y = 4
x = 5 - 4 = 1
2. 2x + y = 5 dan 3x - 2y = 4
2x+3x+2y-y=5-4
5x+y=1
x=5/1 = 5
3. x + y = 12 dan 3x - y = 4
x+3x+y-y = 12-4
4x = 8
x = 8/4 = 2
4. x + 2y = 4 dan 2x - y = 3
x + 2x + 2y -y=4-3
3x + y = 1
y = 3/1 = 3
5. 2x - 4y = 10 dan x + 2y = 9
2x+x-4y+2y = 10-9
3x - 2y = 1
1y = 1
y = 1
6. x + y = 6 dan -x + 3y = 2
= x + x + y + 3y = 6-2
2x+4y=4
6y = 4
y = 6-4 = 2
7. x + 2y = 4 dan 2x + 4y = 5
= x + 2x + 2y + 4y = 5 -4
3x + 6y = 1
9y = 1
y = 9/1 = 9
8. 3x - y = 2 dan 6x - 2y = 4
= 3x - y = 2 | 6x - 2y = 4
3x + 6x -2y - y = 4 - 2
9x - y = 2
x = 9-2
x = 7