(x-28)/7=y/3

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Solution for (x-28)/7=y/3 equation: 


x in (-oo:+oo)

(x-28)/7 = y/3 // - y/3

(x-28)/7-(y/3) = 0

(x-28)/7-y/3 = 0

(3*(x-28))/(3*7)+(7*(-y))/(3*7) = 0

3*(x-28)+7*(-y) = 0

3*x-7*y-84 = 0

(3*x-7*y-84)/(3*7) = 0

(3*x-7*y-84)/(3*7) = 0 // * 3*7

3*x-7*y-84 = 0

3*x-7*y-84 = 0 // + -7*y-84

3*x = -(-7*y-84) // : 3

x = (-(-7*y-84))/3

x = (84-(-7*y))/3

x = (84-(-7*y))/3

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