GUYS PLEASE HELP ITS DUE RIGHT NOW. The directions are at the top right and this is a teachers copy

Answer:
the mistake is in step A
it is because of -2x -2x = -4x not 0
the correct answer is
10x + 13 = -11 -2x
10x + 2x +13 = -11 -2x +2x.
12x+ 13 = -11
12x +13 -13 = -11 -13
12x = -24
x = -2