7x+2=20+5x

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Solution for 7x+2=20+5x equation: 


x in (-oo:+oo)

7*x+2 = 5*x+20 // - 5*x+20

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

7*x-5*x-20+2 = 0

2*x-18 = 0 // + 18

2*x = 18 // : 2

x = 18/2

x = 9

x = 9

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