Answer:
x=17
Step-by-step explanation:
-2x - 125 = -12x + 45
add 12x to each side
-2x+12x - 125 = -12x +12x+ 45
10x -125 = 45
add 125 to each side
10x -125+125 = 45+125
10x = 170
divide by 10
10x/10 = 170/10
x =17
