-7x-9y=63*-1/3

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Solution for -7x-9y=63*-1/3 equation: 


x in (-oo:+oo)

-7*x-(9*y) = (-1*63)/3 // - (-1*63)/3

-7*x-(9*y)-((-1*63)/3) = 0

21-7*x-9*y = 0

21-7*x-9*y = 0 // - 21-9*y

-7*x = -(21-9*y) // : -7

x = (-(21-9*y))/(-7)

x = (21-9*y)/7

x = (21-9*y)/7

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