x-20-(400-4x)^1/2

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Solution for x-20-(400-4x)^1/2 equation: 


x in (-oo:+oo)

x-(((400-(4*x))^1)/2)-20 = 0

x-((400-4*x)/2)-20 = 0

(-1*(400-4*x))/2+x-20 = 0

(-1*(400-4*x))/2+(2*x)/2+(-20*2)/2 = 0

2*x-1*(400-4*x)-20*2 = 0

6*x-400-40 = 0

6*x-440 = 0

(6*x-440)/2 = 0

(6*x-440)/2 = 0 // * 2

6*x-440 = 0

6*x-440 = 0 // + 440

6*x = 440 // : 6

x = 440/6

x = 220/3

x = 220/3

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