-4a/7=-28

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Solution for -4a/7=-28 equation: 


a in (-oo:+oo)

(-4*a)/7 = -28 // + 28

(-4*a)/7+28 = 0

28-4/7*a = 0 // - 28

-4/7*a = -28 // : -4/7

a = -28/(-4/7)

a = 49

a = 49

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