-7/5a=21

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Solution for -7/5a=21 equation: 


a in (-oo:+oo)

(-7/5)*a = 21 // - 21

(-7/5)*a-21 = 0

-7/5*a-21 = 0 // + 21

-7/5*a = 21 // : -7/5

a = 21/(-7/5)

a = -15

a = -15

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