5a-5/7=-20/7

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Solution for 5a-5/7=-20/7 equation: 


a in (-oo:+oo)

5*a-(5/7) = -20/7 // + -20/7

5*a-(5/7)-(-20/7) = 0

5*a-5/7+20/7 = 0

5*a+15/7 = 0 // - 15/7

5*a = -15/7 // : 5

a = -15/7/5

a = -3/7

a = -3/7

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