(2x/5)-x=(x/10)-21/2

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Solution for (2x/5)-x=(x/10)-21/2 equation: 


x in (-oo:+oo)

(2*x)/5-x = x/10-(21/2) // - x/10-(21/2)

(2*x)/5-x-(x/10)+21/2 = 0

21/2-7/10*x = 0 // - 21/2

-7/10*x = -21/2 // : -7/10

x = -21/2/(-7/10)

x = 15

x = 15

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