Solve each equation 7:x=2:3

7 : x = 2 : 3

- divide 7 by 2.

7/2 = 3.5

- this is the scale factor.

- now multiply this by 3.

3 X 3.5 = 10.5

so, x = 10.5

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)

the answer is y = 11.54

hope this : )