danielspence3 danielspence3

29-12-2014
Mathematics

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what is 8-(b-2)=11 in a equation solve for b?

Respuesta :

29-12-2014

8-(b-2)=11

8-b+2=11 (expand brackets)
-b+10=11 (8+2=10, gather like terms)
-b=1 (subtract 10 to both sides)

b=-1 (divide by -1 to both sides)

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