x+798=3624
x=3624-798
x=2826
k-2867=5684
k=5684+2867
k=11377
42410-x=5685
x=42410-5685
x=36725
507*y=405600
y=405600:507
y=800
y:807=480
y=807*480
y=387360
6305+y=8510
y=8510-6305
y=2205
x-1506=910
x=1506+910
x=2416
