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x-(((x-1)^1)/2)-7 = 0
x-((x-1)/2)-7 = 0
(-1*(x-1))/2+x-7 = 0
(-1*(x-1))/2+(2*x)/2+(-7*2)/2 = 0
2*x-1*(x-1)-7*2 = 0
x-14+1 = 0
x-13 = 0
(x-13)/2 = 0
(x-13)/2 = 0 // * 2
x-13 = 0
x-13 = 0 // + 13
x = 13
x = 13
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