5=x/21

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Solution for 5=x/21 equation: 


x in (-oo:+oo)

5 = x/21 // - x/21

5-(x/21) = 0

5-1/21*x = 0 // - 5

-1/21*x = -5 // : -1/21

x = -5/(-1/21)

x = 105

x = 105

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