2/1(x+80)+2/10x=20

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Solution for 2/1(x+80)+2/10x=20 equation:


x in (-oo:+oo)

(2/1)*(x+80)+(2/10)*x = 20 // - 20

(2/1)*(x+80)+(2/10)*x-20 = 0

2*(x+80)+(2/10)*x-20 = 0

2*(x+80)+x/5-20 = 0

(2*5*(x+80))/5+x/5+(-20*5)/5 = 0

2*5*(x+80)+x-20*5 = 0

11*x-100+800 = 0

11*x+700 = 0

(11*x+700)/5 = 0

(11*x+700)/5 = 0 // * 5

11*x+700 = 0

11*x+700 = 0 // - 700

11*x = -700 // : 11

x = -700/11

x = -700/11

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