3(3-1/7x)=30/7

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Solution for 3(3-1/7x)=30/7 equation: 


x in (-oo:+oo)

3*(3-((1/7)*x)) = 30/7 // - 30/7

3*(3-((1/7)*x))-(30/7) = 0

3*((-1/7)*x+3)-30/7 = 0

3*(3-1/7*x)-30/7 = 0

(3*7*(3-1/7*x))/7-30/7 = 0

3*7*(3-1/7*x)-30 = 0

33-3*x = 0

(33-3*x)/7 = 0

(33-3*x)/7 = 0 // * 7

33-3*x = 0

33-3*x = 0 // - 33

-3*x = -33 // : -3

x = -33/(-3)

x = 11

x = 11

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