Sv is an angle bisector of ∠rst. if m∠rsv = (3x + 7)° and m∠rst = (8x − 12)°, find x.
select each definition, postulate, or theorem you will use.
a angle addition postulate
b linear pair theorem
c definition of midpoint
d definition of angle bisector
the solution is x = .

step-by-step explanation:

bob the banana

x = 2

step-by-step explanation:

if sr parallel to ba then the sides bc and ac are in proportion, that is

= ← substitute values

= ( cross- multiply )

27x = 6(4x + 1)

27x = 24x + 6 ( subtract 24x from both sides )

3x = 6 ( divide both sides by 3 )

x = 2