3x-3y/2=21

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


x in (-oo:+oo)

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

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

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

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

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

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

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

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

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