7-5b-5b=77

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Solution for 7-5b-5b=77 equation: 


b in (-oo:+oo)

7-(5*b)-(5*b) = 77 // - 77

7-(5*b)-(5*b)-77 = 0

7-5*b-5*b-77 = 0

-10*b-70 = 0 // + 70

-10*b = 70 // : -10

b = 70/(-10)

b = -7

b = -7

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