28=2b+2b-4

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Solution for 28=2b+2b-4 equation: 


b in (-oo:+oo)

28 = 2*b+2*b-4 // - 2*b+2*b-4

4-(2*b)-(2*b)+28 = 0

4-2*b-2*b+28 = 0

32-4*b = 0 // - 32

-4*b = -32 // : -4

b = -32/(-4)

b = 8

b = 8

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