7(9+5b)=-7

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Solution for 7(9+5b)=-7 equation: 


b in (-oo:+oo)

7*(5*b+9) = -7 // + 7

7*(5*b+9)+7 = 0

7*(5*b+9)+7 = 0

35*b+70 = 0

35*b+70 = 0

35*b+70 = 0 // - 70

35*b = -70 // : 35

b = -70/35

b = -2

b = -2

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