Answer:
Step-by-step explanation:
7x -1 +6x -1 = 180, group like terms
7x+6x -1 -1 = 180, combine like terms
13x -2 = 180, add 2 to both sides
13x -2+2 = 180+2 , solve the additions
13x = 182, divide both sides by 13
13x/13 = 182/13, solve the divisions
x = 14