I need the answer to ( 56 --7)--3

The answer to the problem is 15.

First, you must set up the equation.

Then, you must eliminate double negatives.

Next, divide -56 by -7.

Finally, add like terms.

c

step-by-step explanation:

δabc ≅ δdcb by sas because

db ≅ ac . . given (side)

bc ≅ bc . . reflexive property (side)

∠dbc ≅ ∠ acb . . alternate interior angles where transversal bc crosses parallel lines bd and ac (included angle)