10. x + 12/x + 2 = x/x + 8
a) x = -4
b) x = 8
c) x = 6
d) x = -6

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)

what's the question?

step-by-step explanation:

there is no question.