12x+4_6+9+13=14x +9_2
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12x+4-6+9+13=14x+9-2
12x-14x=9-2-4+6-9-13
2x=7-4+6+9-13
2x=3+6+9-13
2x=9+9-13
2x=18-13
2x=5
x=5/2
12x-14x=9-2-4+6-9-13
2x=7-4+6+9-13
2x=3+6+9-13
2x=9+9-13
2x=18-13
2x=5
x=5/2
arshiya84:
hope it helps u
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