(x)/(5)+(2(x-4))/(10)=7

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Solution for (x)/(5)+(2(x-4))/(10)=7 equation: 


x in (-oo:+oo)

(2*(x-4))/10+x/5 = 7 // - 7

(2*(x-4))/10+x/5-7 = 0

(2*5*(x-4))/(5*10)+(10*x)/(5*10)+(-7*5*10)/(5*10) = 0

2*5*(x-4)+10*x-7*5*10 = 0

20*x-350-40 = 0

20*x-390 = 0

(20*x-390)/(5*10) = 0

(20*x-390)/(5*10) = 0 // * 5*10

20*x-390 = 0

20*x-390 = 0 // + 390

20*x = 390 // : 20

x = 390/20

x = 39/2

x = 39/2

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