Answer:
16,671 is a whole number but if you meant 16.671 the nearest whole number is 17
Step-by-step explanation:
17
x=3
2(x-1)=4
2x-2=4
2x=4+2
2x=6
x=6/2=3
I'm sorry I don't have a functioning brain anymore-
<em>but I think it's 21.</em>
<em />
x = 15
=> x - 3 = 12
=> x = 15
