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2.-4 2.2 + 3.x 3.-3 = 1 -5
2.x 2.-3 + 3.6 3.2y = 24 12
-8 4 + 3x -9 = 1 -5
2x -6 + 18 6y = 24 12
mencari x --------> -8+3x=1 || 3x=1+8 || 3x=9 || x=3
mencari y --------> -6+6y=12 || 6y=12+6 || 6y=18 || y=3
x+2y = 3+2.3 = 3+6 =9
Jadi hasilnya 9