You would want to multiply equation a by -5 so you can eliminate by addition
You can either round to 1000 or 2000 but 1.120 is closer to 1000
Y would equal 0. 2x2=4 and 4-4=0.
The absolute value of a number can never be negative. That's because it represents the distance of a number from zero on a number line. The number

is

digits to the left of zero on a number line. So, the absolute value of

would be

.
Let me know if you have any questions regarding this problem!
Thanks!
-TetraFish