15x-20(4/15+5/15x)=-7

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Solution for 15x-20(4/15+5/15x)=-7 equation: 


x in (-oo:+oo)

15*x-(20*((5/15)*x+4/15)) = -7 // + 7

15*x-(20*((5/15)*x+4/15))+7 = 0

15*x-20*((5/15)*x+4/15)+7 = 0

15*x-20*(1/3*x+4/15)+7 = 0

15*x-20*(1/3*x+4/15)+7 = 0

25/3*x-16/3+7 = 0

25/3*x+5/3 = 0

25/3*x+5/3 = 0

25/3*x+5/3 = 0 // - 5/3

25/3*x = -5/3 // : 25/3

x = -5/3/25/3

x = -1/5

x = -1/5

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