Answer:
Step-by-step explanation:
12-3x=13+3x
collect like terms to one side
12-13=3x+3x
-1=6x
divide by 6
x=-1/6
Solve for x.
x = -1/6
=> 12-3x = 13+3x
=> 12-13 = 3x+3x
=> -1 = 6x
=> x = -1/6
