x/5=21-x/2 - solution

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

x in (-oo:+oo)

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

x/5+x/2-21 = 0

7/10*x-21 = 0 // + 21

7/10*x = 21 // : 7/10

x = 21/7/10

x = 30

x = 30

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