5x-1/5(5+10x)=20

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Solution for 5x-1/5(5+10x)=20 equation: 


x in (-oo:+oo)

5*x-((1/5)*(10*x+5)) = 20 // - 20

5*x-((1/5)*(10*x+5))-20 = 0

(-1/5)*(10*x+5)+5*x-20 = 0

5*x-1/5*(10*x+5)-20 = 0

5*x-1/5*(10*x+5)-20 = 0

3*x-20-1 = 0

3*x-21 = 0

3*x-21 = 0

3*x-21 = 0 // + 21

3*x = 21 // : 3

x = 21/3

x = 7

x = 7

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