a/5-a-3/10=7/10

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Solution for a/5-a-3/10=7/10 equation: 


a in (-oo:+oo)

a/5-a-(3/10) = 7/10 // - 7/10

a/5-a-(3/10)-(7/10) = 0

a/5-a-3/10-7/10 = 0

-4/5*a-1 = 0 // + 1

-4/5*a = 1 // : -4/5

a = 1/(-4/5)

a = -5/4

a = -5/4

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