x-(2/7)x=100

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Solution for x-(2/7)x=100 equation: 


x in (-oo:+oo)

x-((2/7)*x) = 100 // - 100

x-((2/7)*x)-100 = 0

x+(-2/7)*x-100 = 0

5/7*x-100 = 0 // + 100

5/7*x = 100 // : 5/7

x = 100/5/7

x = 140

x = 140

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