-b/-7=4

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Solution for -b/-7=4 equation: 


b in (-oo:+oo)

-b/(-7) = 4 // - 4

-b/(-7)-4 = 0

1/7*b-4 = 0 // + 4

1/7*b = 4 // : 1/7

b = 4/1/7

b = 28

b = 28

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