jekadva

Verified answer

208z-1843=11469
208z=11469+1843
208z=13312
z=13312:208
z=64
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9y+78=1581
9y=1581-78
9y=1503
y=1503:9
y=167
==============
109m-1871=63747
109m=63747+1871
109m=65618
m=65618:109
m=602