7(-9-7b)=378

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Solution for 7(-9-7b)=378 equation: 


b in (-oo:+oo)

7*(-(7*b)-9) = 378 // - 378

7*(-(7*b)-9)-378 = 0

7*(-7*b-9)-378 = 0

7*(-7*b-9)-378 = 0

-49*b-441 = 0

-49*b-441 = 0

-49*b-441 = 0 // + 441

-49*b = 441 // : -49

b = 441/(-49)

b = -9

b = -9

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