Answer:
6
Step-by-step explanation:
1/6x+2/3x=5
2/3=4/6
1/6x+4/6x=5
5/6x=5
Multiply by 6/5 (cause you want a 1 infornt of the x)
5/6 * 6/5 = 30/30=1
5*6/5=30/5=6
x=6