3x/7-x/5=80 - solution

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Solution for 3x/7-x/5=80 equation:

x in (-oo:+oo)

(3*x)/7-(x/5) = 80 // - 80

(3*x)/7-(x/5)-80 = 0

8/35*x-80 = 0 // + 80

8/35*x = 80 // : 8/35

x = 80/8/35

x = 350

x = 350

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