9/2-5/2(2/7x+2/5)=3/7

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Solution for 9/2-5/2(2/7x+2/5)=3/7 equation: 


x in (-oo:+oo)

9/2-((5/2)*((2/7)*x+2/5)) = 3/7 // - 3/7

9/2-((5/2)*((2/7)*x+2/5))-(3/7) = 0

(-5/2)*((2/7)*x+2/5)+9/2-3/7 = 0

9/2-5/2*(2/7*x+2/5)-3/7 = 0

(-5/2*2*7*(2/7*x+2/5))/(2*7)+(7*9)/(2*7)+(-3*2)/(2*7) = 0

7*9-5/2*2*7*(2/7*x+2/5)-3*2 = 0

49-10*x-6 = 0

43-10*x = 0

(43-10*x)/(2*7) = 0

(43-10*x)/(2*7) = 0 // * 2*7

43-10*x = 0

43-10*x = 0 // - 43

-10*x = -43 // : -10

x = -43/(-10)

x = 43/10

x = 43/10

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