390=450-x/3

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Solution for 390=450-x/3 equation: 


x in (-oo:+oo)

390 = 450-(x/3) // - 450-(x/3)

x/3-450+390 = 0

1/3*x-60 = 0 // + 60

1/3*x = 60 // : 1/3

x = 60/1/3

x = 180

x = 180

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