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4x-3y = -4 -
10y = 10, maka y = 1
2x=3-y
x=2/2, maka x=1
x+y = 2
4x - 3y = -4 | X1
6x + 3y = 9
4x - 3y = -4 +
10x = 5
x = 2
2x + y = 3
2(2) + y = 3
4 + y = 3
y = -1
x + y = 2 + (-1) = 1