Answer:
690
Step-by-step explanation:
(323+1715)-(1135+213)
(2038)-(1348)
=690
5677
2100 +1477 = 3577
2100+3577= 5677
2n+2
-n + (-3) +3n + 5 -3
(-3+5) =2
-n +2+n+3n
3n-n = 2n
2/9