-2/7a+9=6

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Solution for -2/7a+9=6 equation: 


a in (-oo:+oo)

(-2/7)*a+9 = 6 // - 6

(-2/7)*a-6+9 = 0

3-2/7*a = 0 // - 3

-2/7*a = -3 // : -2/7

a = -3/(-2/7)

a = 21/2

a = 21/2

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