20 POINTS! WILL MARK BRAINIEST HELP NO LINKS. Write each phrase as a expression. Then find the sum of the expressions. 8 increased by a number x. Expression:
A number x more than -13
Expression:
The difference of 3 and a number x.
Expression:
What is the sum of the expressions?

Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem