-42=b/-4+8

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Solution for -42=b/-4+8 equation: 


b in (-oo:+oo)

-42 = b/(-4)+8 // - b/(-4)+8

-(b/(-4))-42-8 = 0

1/4*b-50 = 0 // + 50

1/4*b = 50 // : 1/4

b = 50/1/4

b = 200

b = 200

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