Answer:
Now,
Either,
x=10
Or,
x+5=10
x=10-5
x=5
34-89
Step-by-step explanation:
steps below
1+2+3+4+896+897+898+899
= (1+899)+(2+898)+(3+897)+(4+896)
= 900 + 900 + 900 + 900
= 3600