2/5(x+y)=3

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Solution for 2/5(x+y)=3 equation: 


x in (-oo:+oo)

(2/5)*(x+y) = 3 // - 3

(2/5)*(x+y)-3 = 0

2/5*(x+y)-3 = 0

2/5*(x+y)-3 = 0

2/5*x+2/5*y-3 = 0

2/5*x+2/5*y-3 = 0

2/5*x+2/5*y-3 = 0 // - 2/5*y-3

2/5*x = -(2/5*y-3) // : 2/5

x = (-(2/5*y-3))/2/5

x = 5/2*(3-(2/5*y))

x = 5/2*(3-(2/5*y))

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