X +579= 901 748 + y = 809 567 - a= 388

Question

X +579= 901 748 + y = 809 567 - a= 388

Answer 1

X+579=901
x=901-579
x=322
322+579=901;

748+y=809
y=809-748
y=61
748+61=809;

567-a=388
a=567-388
a=179
567-179=388.