(2/3)x-20=280 - solution

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Solution for (2/3)x-20=280 equation:

x in (-oo:+oo)

(2/3)*x-20 = 280 // - 280

(2/3)*x-280-20 = 0

2/3*x-300 = 0 // + 300

2/3*x = 300 // : 2/3

x = 300/2/3

x = 450

x = 450

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