21-3y=9/2x

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Solution for 21-3y=9/2x equation: 


x in (-oo:+oo)

21-(3*y) = (9/2)*x // - (9/2)*x

21-((9/2)*x)-(3*y) = 0

(-9/2)*x-3*y+21 = 0

21-9/2*x-3*y = 0 // - 21-3*y

-9/2*x = -(21-3*y) // : -9/2

x = (-(21-3*y))/(-9/2)

x = 2/9*(21-3*y)

x = 2/9*(21-3*y)

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