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n - 4n + 9 - 2 + 3 + 6 - 4.5 = -6.5 ?
tidy up first
-3n +11.5=-6.5
Swap stuff around ( change side change sign)
11.5+6.5 = 3n
18 = 3n
so n=6
tidy up first
-3n +11.5=-6.5
Swap stuff around ( change side change sign)
11.5+6.5 = 3n
18 = 3n
so n=6
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