3-7x-{3-6x-(3-5x)}=9
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hlo mate ✌️
3 - 7x-{ 3 - 6x -(3 -5x)} =9
3 - 7x - { 3 - 3 -x} =9
3 - 7x - (-x) = 9
3 - 6x= 9
6x = -6
x = -1
Hope it helps ❣️❣️
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