What are vertical angles?
Vertical angles are formed by any intersecting 2 lines. The angles that are directly opposite one another on intersecting lines are congruent and equal in measure and size.
explain what valence electron means.
Valence electrons of an atom are in the "outer shell" or electrons that are involved in bonding activity whether covalent between non metals or ionic between metals and nonmetals.
Explain how to solve the equation 2x+1=3
First we isolate the variable by subtracting 1 one from both sides to get 2x=3 then divide by 2 to get x by itself to get the answer x=3/2