39=2a+5a-10

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Solution for 39=2a+5a-10 equation: 


a in (-oo:+oo)

39 = 2*a+5*a-10 // - 2*a+5*a-10

10-(2*a)-(5*a)+39 = 0

10-2*a-5*a+39 = 0

49-7*a = 0 // - 49

-7*a = -49 // : -7

a = -49/(-7)

a = 7

a = 7

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