If a+1 = b+2 = c+3 = d+4 = e+5 = a+b+c+d+e+3

a,b,c,d,e are real numbers.
If a+1 = b+2 = c+3 = d+4 = e+5 = a+b+c+d+e+3 then a^2 + b^2 + c^2 + d^2 + e^2 = ?

Sol:
b = a-1, c = a-2, d=a-3, e = a-4
a+1 = 5a-7
a = 2
b = 1,c=0,d=-1, e=-2
a^2 + b^2 + c^2 + d^2 + e^2 = 10

Ans: 10

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