-7a-9=-20/3

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Solution for -7a-9=-20/3 equation: 


a in (-oo:+oo)

-7*a-9 = -20/3 // + -20/3

-7*a-(-20/3)-9 = 0

20/3-7*a-9 = 0

-7*a-7/3 = 0 // + 7/3

-7*a = 7/3 // : -7

a = 7/3/(-7)

a = -1/3

a = -1/3

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