(3y-7)/4=(4y-84)/3

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Solution for (3y-7)/4=(4y-84)/3 equation: 


y in (-oo:+oo)

(3*y-7)/4 = (4*y-84)/3 // - (4*y-84)/3

(3*y-7)/4-((4*y-84)/3) = 0

(3*y-7)/4+(-1*(4*y-84))/3 = 0

(3*(3*y-7))/(3*4)+(-1*4*(4*y-84))/(3*4) = 0

3*(3*y-7)-1*4*(4*y-84) = 0

315-7*y = 0

(315-7*y)/(3*4) = 0

(315-7*y)/(3*4) = 0 // * 3*4

315-7*y = 0

315-7*y = 0 // - 315

-7*y = -315 // : -7

y = -315/(-7)

y = 45

y = 45

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