2x/5+5=21 - solution

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Solution for 2x/5+5=21 equation:

x in (-oo:+oo)

(2*x)/5+5 = 21 // - 21

(2*x)/5-21+5 = 0

2/5*x-16 = 0 // + 16

2/5*x = 16 // : 2/5

x = 16/2/5

x = 40

x = 40

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