What is 3630 estimated to

my
3630 estimated to the thousandths is 4000 because 3630
                                                                                      
630 is over 500 witch means it goes up

im pretty sure its -9

Step-by-step explanation:

the equation explained would look something like this...

-5x-22=23

so you would isolate the variable by first adding 22 to both sides and the dividing by -5 on both sides

-5x-22=23

    +22  +22

-5x/-5=45/-5

x=-9