-7/4a=21

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Solution for -7/4a=21 equation: 


a in (-oo:+oo)

(-7/4)*a = 21 // - 21

(-7/4)*a-21 = 0

-7/4*a-21 = 0 // + 21

-7/4*a = 21 // : -7/4

a = 21/(-7/4)

a = -12

a = -12

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