21+x/2=26.5 - solution

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Solution for 21+x/2=26.5 equation:

x in (-oo:+oo)

x/2+21 = 26.5 // - 26.5

x/2-26.5+21 = 0

1/2*x-5.5 = 0 // + 5.5

1/2*x = 5.5 // : 1/2

x = 5.5/1/2

x = 11

x = 11

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