a/-8.4+7=20

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Solution for a/-8.4+7=20 equation: 


a in (-oo:+oo)

a/(-8.4)+7 = 20 // - 20

a/(-8.4)-20+7 = 0

-0.11904762*a-13 = 0 // + 13

-0.11904762*a = 13 // : -0.11904762

a = 13/(-0.11904762)

a = -109.19999913

a = -109.19999913

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